diff --git a/demo/src/Audio/Chat.php b/demo/src/Audio/Chat.php
index 178dd32f..2987e465 100644
--- a/demo/src/Audio/Chat.php
+++ b/demo/src/Audio/Chat.php
@@ -39,7 +39,7 @@ public function say(string $base64audio): void
         $path = tempnam(sys_get_temp_dir(), 'audio-').'.wav';
         file_put_contents($path, base64_decode($base64audio));
 
-        $result = $this->platform->invoke(new Whisper(), Audio::fromFile($path));
+        $result = $this->platform->invoke(Whisper::create(), Audio::fromFile($path));
 
         $this->submitMessage($result->asText());
     }
diff --git a/demo/src/Video/TwigComponent.php b/demo/src/Video/TwigComponent.php
index 448e7000..115ca38f 100644
--- a/demo/src/Video/TwigComponent.php
+++ b/demo/src/Video/TwigComponent.php
@@ -47,7 +47,7 @@ public function submit(#[LiveArg] string $instruction, #[LiveArg] string $image)
             Message::ofUser($instruction, Image::fromDataUrl($image))
         );
 
-        $result = $this->platform->invoke(new Gpt(Gpt::GPT_4O_MINI), $messageBag, [
+        $result = $this->platform->invoke(Gpt::create(Gpt::GPT_4O_MINI), $messageBag, [
             'max_tokens' => 100,
         ]);
 
diff --git a/examples/albert/chat.php b/examples/albert/chat.php
index 3fea6d47..88d04719 100644
--- a/examples/albert/chat.php
+++ b/examples/albert/chat.php
@@ -19,7 +19,7 @@
 
 $platform = PlatformFactory::create(env('ALBERT_API_KEY'), env('ALBERT_API_URL'), http_client());
 
-$model = new Gpt('gpt-4o');
+$model = Gpt::create('gpt-4o');
 $agent = new Agent($platform, $model, logger: logger());
 
 $documentContext = <<<'CONTEXT'
diff --git a/examples/anthropic/chat.php b/examples/anthropic/chat.php
index d2c0ed86..c07d8061 100644
--- a/examples/anthropic/chat.php
+++ b/examples/anthropic/chat.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('ANTHROPIC_API_KEY'), httpClient: http_client());
-$model = new Claude(Claude::SONNET_37);
+$model = Claude::create(Claude::SONNET_37);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/anthropic/image-input-binary.php b/examples/anthropic/image-input-binary.php
index d2e8fe9b..2dd44cd6 100644
--- a/examples/anthropic/image-input-binary.php
+++ b/examples/anthropic/image-input-binary.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('ANTHROPIC_API_KEY'), httpClient: http_client());
-$model = new Claude(Claude::SONNET_37);
+$model = Claude::create(Claude::SONNET_37);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/anthropic/image-input-url.php b/examples/anthropic/image-input-url.php
index 089eb927..f4ab74cd 100644
--- a/examples/anthropic/image-input-url.php
+++ b/examples/anthropic/image-input-url.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('ANTHROPIC_API_KEY'), httpClient: http_client());
-$model = new Claude(Claude::SONNET_37);
+$model = Claude::create(Claude::SONNET_37);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/anthropic/pdf-input-binary.php b/examples/anthropic/pdf-input-binary.php
index 79cc9f64..f0437f5f 100644
--- a/examples/anthropic/pdf-input-binary.php
+++ b/examples/anthropic/pdf-input-binary.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('ANTHROPIC_API_KEY'), httpClient: http_client());
-$model = new Claude(Claude::SONNET_37);
+$model = Claude::create(Claude::SONNET_37);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/anthropic/pdf-input-url.php b/examples/anthropic/pdf-input-url.php
index 4f3d4f88..08749dc8 100644
--- a/examples/anthropic/pdf-input-url.php
+++ b/examples/anthropic/pdf-input-url.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('ANTHROPIC_API_KEY'), httpClient: http_client());
-$model = new Claude(Claude::SONNET_37);
+$model = Claude::create(Claude::SONNET_37);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/anthropic/stream.php b/examples/anthropic/stream.php
index 69373d53..f55eea34 100644
--- a/examples/anthropic/stream.php
+++ b/examples/anthropic/stream.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('ANTHROPIC_API_KEY'), httpClient: http_client());
-$model = new Claude();
+$model = Claude::create();
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/anthropic/toolcall.php b/examples/anthropic/toolcall.php
index 926c0576..c7b0a673 100644
--- a/examples/anthropic/toolcall.php
+++ b/examples/anthropic/toolcall.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('ANTHROPIC_API_KEY'), httpClient: http_client());
-$model = new Claude();
+$model = Claude::create();
 
 $wikipedia = new Wikipedia(http_client());
 $toolbox = new Toolbox([$wikipedia], logger: logger());
diff --git a/examples/azure/audio-transcript.php b/examples/azure/audio-transcript.php
index e4ffea49..30b56620 100644
--- a/examples/azure/audio-transcript.php
+++ b/examples/azure/audio-transcript.php
@@ -22,7 +22,7 @@
     env('AZURE_OPENAI_KEY'),
     http_client(),
 );
-$model = new Whisper();
+$model = Whisper::create();
 $file = Audio::fromFile(dirname(__DIR__, 2).'/fixtures/audio.mp3');
 
 $result = $platform->invoke($model, $file);
diff --git a/examples/azure/chat-gpt.php b/examples/azure/chat-gpt.php
index 114c5492..74ce8398 100644
--- a/examples/azure/chat-gpt.php
+++ b/examples/azure/chat-gpt.php
@@ -24,7 +24,7 @@
     env('AZURE_OPENAI_KEY'),
     http_client(),
 );
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/azure/chat-llama.php b/examples/azure/chat-llama.php
index 011abdbc..f37bdb2b 100644
--- a/examples/azure/chat-llama.php
+++ b/examples/azure/chat-llama.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('AZURE_LLAMA_BASEURL'), env('AZURE_LLAMA_KEY'), http_client());
-$model = new Llama(Llama::V3_3_70B_INSTRUCT);
+$model = Llama::create(Llama::V3_3_70B_INSTRUCT);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(Message::ofUser('I am going to Paris, what should I see?'));
diff --git a/examples/azure/embeddings.php b/examples/azure/embeddings.php
index f87aaaf9..734642a4 100644
--- a/examples/azure/embeddings.php
+++ b/examples/azure/embeddings.php
@@ -21,7 +21,7 @@
     env('AZURE_OPENAI_KEY'),
     http_client(),
 );
-$embeddings = new Embeddings();
+$embeddings = Embeddings::create();
 
 $result = $platform->invoke($embeddings, <<<TEXT
     Once upon a time, there was a country called Japan. It was a beautiful country with a lot of mountains and rivers.
diff --git a/examples/bedrock/chat-claude.php b/examples/bedrock/chat-claude.php
index 3671df6d..a7d339c0 100644
--- a/examples/bedrock/chat-claude.php
+++ b/examples/bedrock/chat-claude.php
@@ -24,7 +24,7 @@
 }
 
 $platform = PlatformFactory::create();
-$model = new Claude('claude-3-7-sonnet-20250219');
+$model = Claude::create('claude-3-7-sonnet-20250219');
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/bedrock/chat-llama.php b/examples/bedrock/chat-llama.php
index 9ff4e602..d1c032ff 100644
--- a/examples/bedrock/chat-llama.php
+++ b/examples/bedrock/chat-llama.php
@@ -24,7 +24,7 @@
 }
 
 $platform = PlatformFactory::create();
-$model = new Llama(Llama::V3_2_3B_INSTRUCT);
+$model = Llama::create(Llama::V3_2_3B_INSTRUCT);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/bedrock/chat-nova.php b/examples/bedrock/chat-nova.php
index 9a7b39a8..fd8d4351 100644
--- a/examples/bedrock/chat-nova.php
+++ b/examples/bedrock/chat-nova.php
@@ -24,7 +24,7 @@
 }
 
 $platform = PlatformFactory::create();
-$model = new Nova(Nova::PRO);
+$model = Nova::create(Nova::PRO);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/bedrock/image-claude-binary.php b/examples/bedrock/image-claude-binary.php
index 85a4aa8f..83aa5750 100644
--- a/examples/bedrock/image-claude-binary.php
+++ b/examples/bedrock/image-claude-binary.php
@@ -25,7 +25,7 @@
 }
 
 $platform = PlatformFactory::create();
-$model = new Claude('claude-3-7-sonnet-20250219');
+$model = Claude::create('claude-3-7-sonnet-20250219');
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/bedrock/image-nova.php b/examples/bedrock/image-nova.php
index c1414689..5c2abac9 100644
--- a/examples/bedrock/image-nova.php
+++ b/examples/bedrock/image-nova.php
@@ -25,7 +25,7 @@
 }
 
 $platform = PlatformFactory::create();
-$model = new Nova(Nova::PRO);
+$model = Nova::create(Nova::PRO);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/bedrock/toolcall-claude.php b/examples/bedrock/toolcall-claude.php
index 6914151f..3f6064a9 100644
--- a/examples/bedrock/toolcall-claude.php
+++ b/examples/bedrock/toolcall-claude.php
@@ -27,7 +27,7 @@
 }
 
 $platform = PlatformFactory::create();
-$model = new Claude('claude-3-7-sonnet-20250219');
+$model = Claude::create('claude-3-7-sonnet-20250219');
 
 $wikipedia = new Wikipedia(http_client());
 $toolbox = new Toolbox([$wikipedia]);
diff --git a/examples/bedrock/toolcall-nova.php b/examples/bedrock/toolcall-nova.php
index 1f1f7e7c..b8fa9c64 100644
--- a/examples/bedrock/toolcall-nova.php
+++ b/examples/bedrock/toolcall-nova.php
@@ -27,7 +27,7 @@
 }
 
 $platform = PlatformFactory::create();
-$model = new Nova();
+$model = Nova::create();
 
 $wikipedia = new Wikipedia(http_client());
 $toolbox = new Toolbox([$wikipedia]);
diff --git a/examples/document/vectorizing.php b/examples/document/vectorizing.php
index 1fa1bb04..db02c3b9 100644
--- a/examples/document/vectorizing.php
+++ b/examples/document/vectorizing.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$embeddings = new Embeddings(Embeddings::TEXT_3_LARGE);
+$embeddings = Embeddings::create(Embeddings::TEXT_3_LARGE);
 
 $textDocuments = [
     new TextDocument(Uuid::v4(), 'Hello World'),
diff --git a/examples/gemini/audio-input.php b/examples/gemini/audio-input.php
index b5bb74f7..60dc1651 100644
--- a/examples/gemini/audio-input.php
+++ b/examples/gemini/audio-input.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$model = new Gemini(Gemini::GEMINI_1_5_FLASH);
+$model = Gemini::create(Gemini::GEMINI_1_5_FLASH);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/gemini/chat.php b/examples/gemini/chat.php
index 7d24463a..2fdb7d85 100644
--- a/examples/gemini/chat.php
+++ b/examples/gemini/chat.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$model = new Gemini(Gemini::GEMINI_2_FLASH);
+$model = Gemini::create(Gemini::GEMINI_2_FLASH);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/gemini/embeddings.php b/examples/gemini/embeddings.php
index 912de45b..e50beb0c 100644
--- a/examples/gemini/embeddings.php
+++ b/examples/gemini/embeddings.php
@@ -15,7 +15,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$embeddings = new Embeddings();
+$embeddings = Embeddings::create();
 
 $result = $platform->invoke($embeddings, <<<TEXT
     Once upon a time, there was a country called Japan. It was a beautiful country with a lot of mountains and rivers.
diff --git a/examples/gemini/image-input.php b/examples/gemini/image-input.php
index e1f41fbf..8c6923d0 100644
--- a/examples/gemini/image-input.php
+++ b/examples/gemini/image-input.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$model = new Gemini(Gemini::GEMINI_1_5_FLASH);
+$model = Gemini::create(Gemini::GEMINI_1_5_FLASH);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/gemini/pdf-input-binary.php b/examples/gemini/pdf-input-binary.php
index 4928fae4..9958068e 100644
--- a/examples/gemini/pdf-input-binary.php
+++ b/examples/gemini/pdf-input-binary.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$model = new Gemini(Gemini::GEMINI_1_5_FLASH);
+$model = Gemini::create(Gemini::GEMINI_1_5_FLASH);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/gemini/server-tools.php b/examples/gemini/server-tools.php
index 2a47ebaf..ddddd360 100644
--- a/examples/gemini/server-tools.php
+++ b/examples/gemini/server-tools.php
@@ -23,7 +23,7 @@
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
 
 // Available server-side tools as of 2025-06-28: url_context, google_search, code_execution
-$llm = new Gemini('gemini-2.5-pro-preview-03-25', ['server_tools' => ['url_context' => true], 'temperature' => 1.0]);
+$llm = Gemini::create('gemini-2.5-pro-preview-03-25', options: ['server_tools' => ['url_context' => true], 'temperature' => 1.0]);
 
 $toolbox = new Toolbox([new Clock()], logger: logger());
 $processor = new AgentProcessor($toolbox);
diff --git a/examples/gemini/stream.php b/examples/gemini/stream.php
index 5e29174d..90eb09e6 100644
--- a/examples/gemini/stream.php
+++ b/examples/gemini/stream.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$model = new Gemini(Gemini::GEMINI_2_FLASH);
+$model = Gemini::create(Gemini::GEMINI_2_FLASH);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/gemini/structured-output-clock.php b/examples/gemini/structured-output-clock.php
index cc6b1e71..5bfad559 100644
--- a/examples/gemini/structured-output-clock.php
+++ b/examples/gemini/structured-output-clock.php
@@ -23,7 +23,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$model = new Gemini(Gemini::GEMINI_1_5_FLASH);
+$model = Gemini::create(Gemini::GEMINI_1_5_FLASH);
 
 $clock = new Clock(new SymfonyClock());
 $toolbox = new Toolbox([$clock]);
diff --git a/examples/gemini/structured-output-math.php b/examples/gemini/structured-output-math.php
index 549b4ce2..adc5eb91 100644
--- a/examples/gemini/structured-output-math.php
+++ b/examples/gemini/structured-output-math.php
@@ -20,7 +20,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$model = new Gemini(Gemini::GEMINI_1_5_FLASH);
+$model = Gemini::create(Gemini::GEMINI_1_5_FLASH);
 
 $processor = new AgentProcessor();
 $agent = new Agent($platform, $model, [$processor], [$processor], logger());
diff --git a/examples/gemini/toolcall.php b/examples/gemini/toolcall.php
index e9355312..5d6033a8 100644
--- a/examples/gemini/toolcall.php
+++ b/examples/gemini/toolcall.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$llm = new Gemini(Gemini::GEMINI_2_FLASH);
+$llm = Gemini::create(Gemini::GEMINI_2_FLASH);
 
 $toolbox = new Toolbox([new Clock()], logger: logger());
 $processor = new AgentProcessor($toolbox);
diff --git a/examples/lmstudio/chat.php b/examples/lmstudio/chat.php
index 76532da0..9e8218d5 100644
--- a/examples/lmstudio/chat.php
+++ b/examples/lmstudio/chat.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('LMSTUDIO_HOST_URL'), http_client());
-$model = new Completions('gemma-3-4b-it-qat');
+$model = Completions::create('gemma-3-4b-it-qat');
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/lmstudio/image-input-binary.php b/examples/lmstudio/image-input-binary.php
index fa52bf88..2b1dd610 100644
--- a/examples/lmstudio/image-input-binary.php
+++ b/examples/lmstudio/image-input-binary.php
@@ -20,7 +20,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('LMSTUDIO_HOST_URL'), http_client());
-$model = new Completions(
+$model = Completions::create(
     name: 'gemma-3-4b-it-qat',
     capabilities: [...Completions::DEFAULT_CAPABILITIES, Capability::INPUT_IMAGE]
 );
diff --git a/examples/memory/mariadb.php b/examples/memory/mariadb.php
index b49ddb27..920b493f 100644
--- a/examples/memory/mariadb.php
+++ b/examples/memory/mariadb.php
@@ -58,7 +58,7 @@
 
 // create embeddings for documents as preparation of the chain memory
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
@@ -66,7 +66,7 @@
 $embeddingsMemory = new EmbeddingProvider($platform, $embeddings, $store);
 $memoryProcessor = new MemoryInputProcessor($embeddingsMemory);
 
-$agent = new Agent($platform, new Gpt(Gpt::GPT_4O_MINI), [$memoryProcessor], logger: logger());
+$agent = new Agent($platform, Gpt::create(Gpt::GPT_4O_MINI), [$memoryProcessor], logger: logger());
 $messages = new MessageBag(Message::ofUser('Have we discussed about my friend John in the past? If yes, what did we talk about?'));
 $result = $agent->call($messages);
 
diff --git a/examples/memory/static.php b/examples/memory/static.php
index 8d717080..50fe8f80 100644
--- a/examples/memory/static.php
+++ b/examples/memory/static.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create($_ENV['OPENAI_API_KEY'], http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $systemPromptProcessor = new SystemPromptInputProcessor('You are a professional trainer with short, personalized advice and a motivating claim.');
 
diff --git a/examples/misc/chat-system-prompt.php b/examples/misc/chat-system-prompt.php
index 832637ec..1e35283e 100644
--- a/examples/misc/chat-system-prompt.php
+++ b/examples/misc/chat-system-prompt.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $processor = new SystemPromptInputProcessor('You are Yoda and write like he speaks. But short.');
 
diff --git a/examples/misc/parallel-chat-gpt.php b/examples/misc/parallel-chat-gpt.php
index 0c4b40ac..441fbd09 100644
--- a/examples/misc/parallel-chat-gpt.php
+++ b/examples/misc/parallel-chat-gpt.php
@@ -17,7 +17,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI, [
+$model = Gpt::create(Gpt::GPT_4O_MINI, [
     'temperature' => 0.5, // default options for the model
 ]);
 
diff --git a/examples/misc/parallel-embeddings.php b/examples/misc/parallel-embeddings.php
index 7c14ca28..a6ed141e 100644
--- a/examples/misc/parallel-embeddings.php
+++ b/examples/misc/parallel-embeddings.php
@@ -15,9 +15,9 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$ada = new Embeddings(Embeddings::TEXT_ADA_002);
-$small = new Embeddings(Embeddings::TEXT_3_SMALL);
-$large = new Embeddings(Embeddings::TEXT_3_LARGE);
+$ada = Embeddings::create(Embeddings::TEXT_ADA_002);
+$small = Embeddings::create(Embeddings::TEXT_3_SMALL);
+$large = Embeddings::create(Embeddings::TEXT_3_LARGE);
 
 echo 'Initiating parallel embeddings calls to platform ...'.\PHP_EOL;
 $results = [];
diff --git a/examples/misc/persistent-chat.php b/examples/misc/persistent-chat.php
index 8b9df26f..1a416370 100644
--- a/examples/misc/persistent-chat.php
+++ b/examples/misc/persistent-chat.php
@@ -20,7 +20,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$llm = new Gpt(Gpt::GPT_4O_MINI);
+$llm = Gpt::create(Gpt::GPT_4O_MINI);
 
 $agent = new Agent($platform, $llm, logger: logger());
 $chat = new Chat($agent, new InMemoryStore());
diff --git a/examples/mistral/chat-multiple.php b/examples/mistral/chat-multiple.php
index 8e9281bd..971dbe39 100644
--- a/examples/mistral/chat-multiple.php
+++ b/examples/mistral/chat-multiple.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('MISTRAL_API_KEY'), http_client());
-$agent = new Agent($platform, new Mistral(), logger: logger());
+$agent = new Agent($platform, Mistral::create(), logger: logger());
 
 $messages = new MessageBag(
     Message::forSystem('Just give short answers.'),
diff --git a/examples/mistral/chat.php b/examples/mistral/chat.php
index cf11f10d..27417ded 100644
--- a/examples/mistral/chat.php
+++ b/examples/mistral/chat.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('MISTRAL_API_KEY'), http_client());
-$model = new Mistral();
+$model = Mistral::create();
 $agent = new Agent($platform, $model, logger: logger());
 
 $messages = new MessageBag(Message::ofUser('What is the best French cheese?'));
diff --git a/examples/mistral/embeddings.php b/examples/mistral/embeddings.php
index 2e820743..1168c89c 100644
--- a/examples/mistral/embeddings.php
+++ b/examples/mistral/embeddings.php
@@ -15,7 +15,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('MISTRAL_API_KEY'), http_client());
-$model = new Embeddings();
+$model = Embeddings::create();
 
 $result = $platform->invoke($model, <<<TEXT
     In the middle of the 20th century, food scientists began to understand the importance of vitamins and minerals in
diff --git a/examples/mistral/image.php b/examples/mistral/image.php
index f7e682c9..7000c811 100644
--- a/examples/mistral/image.php
+++ b/examples/mistral/image.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('MISTRAL_API_KEY'), http_client());
-$model = new Mistral(Mistral::MISTRAL_SMALL);
+$model = Mistral::create(Mistral::MISTRAL_SMALL);
 $agent = new Agent($platform, $model, logger: logger());
 
 $messages = new MessageBag(
diff --git a/examples/mistral/stream.php b/examples/mistral/stream.php
index 85982237..9f0c47fb 100644
--- a/examples/mistral/stream.php
+++ b/examples/mistral/stream.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('MISTRAL_API_KEY'), http_client());
-$model = new Mistral();
+$model = Mistral::create();
 $agent = new Agent($platform, $model, logger: logger());
 
 $messages = new MessageBag(Message::ofUser('What is the eighth prime number?'));
diff --git a/examples/mistral/structured-output-math.php b/examples/mistral/structured-output-math.php
index 65b054d6..221562b7 100644
--- a/examples/mistral/structured-output-math.php
+++ b/examples/mistral/structured-output-math.php
@@ -24,7 +24,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('MISTRAL_API_KEY'), http_client());
-$model = new Mistral(Mistral::MISTRAL_SMALL);
+$model = Mistral::create(Mistral::MISTRAL_SMALL);
 $serializer = new Serializer([new ObjectNormalizer()], [new JsonEncoder()]);
 
 $processor = new AgentProcessor(new ResponseFormatFactory(), $serializer);
diff --git a/examples/mistral/toolcall-stream.php b/examples/mistral/toolcall-stream.php
index 475cc822..8854d50d 100644
--- a/examples/mistral/toolcall-stream.php
+++ b/examples/mistral/toolcall-stream.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('MISTRAL_API_KEY'), http_client());
-$model = new Mistral();
+$model = Mistral::create();
 
 $transcriber = new YouTubeTranscriber(http_client());
 $toolbox = new Toolbox([$transcriber], logger: logger());
diff --git a/examples/mistral/toolcall.php b/examples/mistral/toolcall.php
index 7ab6b7a0..58b75cfe 100644
--- a/examples/mistral/toolcall.php
+++ b/examples/mistral/toolcall.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('MISTRAL_API_KEY'), http_client());
-$model = new Mistral();
+$model = Mistral::create();
 
 $toolbox = new Toolbox([new Clock()], logger: logger());
 $processor = new AgentProcessor($toolbox);
diff --git a/examples/ollama/chat-llama.php b/examples/ollama/chat-llama.php
index 394d815c..27dbebc3 100644
--- a/examples/ollama/chat-llama.php
+++ b/examples/ollama/chat-llama.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OLLAMA_HOST_URL'), http_client());
-$model = new Ollama();
+$model = Ollama::create();
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/ollama/embeddings.php b/examples/ollama/embeddings.php
index 822704d8..605416ef 100644
--- a/examples/ollama/embeddings.php
+++ b/examples/ollama/embeddings.php
@@ -16,7 +16,7 @@
 
 $platform = PlatformFactory::create(env('OLLAMA_HOST_URL'), http_client());
 
-$response = $platform->invoke(new Ollama(Ollama::NOMIC_EMBED_TEXT), <<<TEXT
+$response = $platform->invoke(Ollama::create(Ollama::NOMIC_EMBED_TEXT), <<<TEXT
     Once upon a time, there was a country called Japan. It was a beautiful country with a lot of mountains and rivers.
     The people of Japan were very kind and hardworking. They loved their country very much and took care of it. The
     country was very peaceful and prosperous. The people lived happily ever after.
diff --git a/examples/ollama/toolcall.php b/examples/ollama/toolcall.php
index d57fbe3c..47f2c025 100644
--- a/examples/ollama/toolcall.php
+++ b/examples/ollama/toolcall.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OLLAMA_HOST_URL'), http_client());
-$model = new Ollama();
+$model = Ollama::create();
 
 $toolbox = new Toolbox([new Clock()], logger: logger());
 $processor = new AgentProcessor($toolbox);
diff --git a/examples/openai/audio-input.php b/examples/openai/audio-input.php
index ad7f5f84..219ecf8d 100644
--- a/examples/openai/audio-input.php
+++ b/examples/openai/audio-input.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_AUDIO);
+$model = Gpt::create(Gpt::GPT_4O_AUDIO);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/openai/audio-transcript.php b/examples/openai/audio-transcript.php
index 1b961e0a..ed090427 100644
--- a/examples/openai/audio-transcript.php
+++ b/examples/openai/audio-transcript.php
@@ -16,7 +16,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Whisper();
+$model = Whisper::create();
 $file = Audio::fromFile(dirname(__DIR__, 2).'/fixtures/audio.mp3');
 
 $result = $platform->invoke($model, $file);
diff --git a/examples/openai/chat-o1.php b/examples/openai/chat-o1.php
index be420b40..b47e2d52 100644
--- a/examples/openai/chat-o1.php
+++ b/examples/openai/chat-o1.php
@@ -23,7 +23,7 @@
 }
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::O1_PREVIEW);
+$model = Gpt::create(Gpt::O1_PREVIEW);
 
 $prompt = <<<PROMPT
     I want to build a Symfony app in PHP 8.2 that takes user questions and looks them
diff --git a/examples/openai/chat.php b/examples/openai/chat.php
index bddeba46..156f7270 100644
--- a/examples/openai/chat.php
+++ b/examples/openai/chat.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI, [
+$model = Gpt::create(Gpt::GPT_4O_MINI, [
     'temperature' => 0.5, // default options for the model
 ]);
 
diff --git a/examples/openai/embeddings.php b/examples/openai/embeddings.php
index 5911933f..6d0d64c7 100644
--- a/examples/openai/embeddings.php
+++ b/examples/openai/embeddings.php
@@ -15,7 +15,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$embeddings = new Embeddings();
+$embeddings = Embeddings::create();
 
 $result = $platform->invoke($embeddings, <<<TEXT
     Once upon a time, there was a country called Japan. It was a beautiful country with a lot of mountains and rivers.
diff --git a/examples/openai/image-input-binary.php b/examples/openai/image-input-binary.php
index 6061bf20..cb19b638 100644
--- a/examples/openai/image-input-binary.php
+++ b/examples/openai/image-input-binary.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/openai/image-input-url.php b/examples/openai/image-input-url.php
index 7fcced7e..8eb5c1c7 100644
--- a/examples/openai/image-input-url.php
+++ b/examples/openai/image-input-url.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/openai/image-output-dall-e-2.php b/examples/openai/image-output-dall-e-2.php
index 2cbab5a4..b3d04843 100644
--- a/examples/openai/image-output-dall-e-2.php
+++ b/examples/openai/image-output-dall-e-2.php
@@ -17,7 +17,7 @@
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
 
 $result = $platform->invoke(
-    model: new DallE(), // Utilize Dall-E 2 version in default
+    model: DallE::create(), // Utilize Dall-E 2 version in default
     input: 'A cartoon-style elephant with a long trunk and large ears.',
     options: [
         'response_format' => 'url', // Generate response as URL
diff --git a/examples/openai/image-output-dall-e-3.php b/examples/openai/image-output-dall-e-3.php
index 0898dc83..2af89033 100644
--- a/examples/openai/image-output-dall-e-3.php
+++ b/examples/openai/image-output-dall-e-3.php
@@ -18,7 +18,7 @@
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
 
 $result = $platform->invoke(
-    model: new DallE(name: DallE::DALL_E_3),
+    model: DallE::create(name: DallE::DALL_E_3),
     input: 'A cartoon-style elephant with a long trunk and large ears.',
     options: [
         'response_format' => 'url', // Generate response as URL
diff --git a/examples/openai/stream.php b/examples/openai/stream.php
index 62752e29..bc8fc9e0 100644
--- a/examples/openai/stream.php
+++ b/examples/openai/stream.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/openai/structured-output-clock.php b/examples/openai/structured-output-clock.php
index 7fe092de..2cf652c7 100644
--- a/examples/openai/structured-output-clock.php
+++ b/examples/openai/structured-output-clock.php
@@ -23,7 +23,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $clock = new Clock(new SymfonyClock());
 $toolbox = new Toolbox([$clock], logger: logger());
diff --git a/examples/openai/structured-output-math.php b/examples/openai/structured-output-math.php
index a05cce0c..69d58b0c 100644
--- a/examples/openai/structured-output-math.php
+++ b/examples/openai/structured-output-math.php
@@ -20,7 +20,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $processor = new AgentProcessor();
 $agent = new Agent($platform, $model, [$processor], [$processor], logger());
diff --git a/examples/openai/token-metadata.php b/examples/openai/token-metadata.php
index d3e32c00..c95c70f9 100644
--- a/examples/openai/token-metadata.php
+++ b/examples/openai/token-metadata.php
@@ -19,7 +19,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI, [
+$model = Gpt::create(Gpt::GPT_4O_MINI, [
     'temperature' => 0.5, // default options for the model
 ]);
 
diff --git a/examples/openai/toolcall-stream.php b/examples/openai/toolcall-stream.php
index d5e8d0f4..34ffe313 100644
--- a/examples/openai/toolcall-stream.php
+++ b/examples/openai/toolcall-stream.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $wikipedia = new Wikipedia(http_client());
 $toolbox = new Toolbox([$wikipedia], logger: logger());
diff --git a/examples/openai/toolcall.php b/examples/openai/toolcall.php
index 3d31fc5d..512d9128 100644
--- a/examples/openai/toolcall.php
+++ b/examples/openai/toolcall.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $transcriber = new YouTubeTranscriber(http_client());
 $toolbox = new Toolbox([$transcriber], logger: logger());
diff --git a/examples/rag/cache.php b/examples/rag/cache.php
index 46d3d704..62077ea5 100644
--- a/examples/rag/cache.php
+++ b/examples/rag/cache.php
@@ -43,11 +43,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/in-memory.php b/examples/rag/in-memory.php
index 536aa1b5..0f4a06b1 100644
--- a/examples/rag/in-memory.php
+++ b/examples/rag/in-memory.php
@@ -42,11 +42,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/mariadb-gemini.php b/examples/rag/mariadb-gemini.php
index 6d72fec6..754e2293 100644
--- a/examples/rag/mariadb-gemini.php
+++ b/examples/rag/mariadb-gemini.php
@@ -52,12 +52,12 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('GEMINI_API_KEY'), http_client());
-$embeddings = new Embeddings(options: ['dimensions' => 768, 'task_type' => TaskType::SemanticSimilarity]);
+$embeddings = Embeddings::create(options: ['dimensions' => 768, 'task_type' => TaskType::SemanticSimilarity]);
 $vectorizer = new Vectorizer($platform, $embeddings);
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gemini(Gemini::GEMINI_2_FLASH_LITE);
+$model = Gemini::create(Gemini::GEMINI_2_FLASH_LITE);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/mariadb-openai.php b/examples/rag/mariadb-openai.php
index 110a76d2..221eb8d7 100644
--- a/examples/rag/mariadb-openai.php
+++ b/examples/rag/mariadb-openai.php
@@ -51,11 +51,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/meilisearch.php b/examples/rag/meilisearch.php
index 588beb99..a7615d66 100644
--- a/examples/rag/meilisearch.php
+++ b/examples/rag/meilisearch.php
@@ -52,11 +52,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/mongodb.php b/examples/rag/mongodb.php
index 7df29213..9464e044 100644
--- a/examples/rag/mongodb.php
+++ b/examples/rag/mongodb.php
@@ -49,14 +49,14 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'));
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
 // initialize the index
 $store->initialize();
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/neo4j.php b/examples/rag/neo4j.php
index de115447..ed025f60 100644
--- a/examples/rag/neo4j.php
+++ b/examples/rag/neo4j.php
@@ -55,11 +55,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create($_SERVER['OPENAI_API_KEY']);
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store);
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/pinecone.php b/examples/rag/pinecone.php
index 43cb308f..76f60b8f 100644
--- a/examples/rag/pinecone.php
+++ b/examples/rag/pinecone.php
@@ -43,11 +43,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/postgres.php b/examples/rag/postgres.php
index e64d1164..4cdcb847 100644
--- a/examples/rag/postgres.php
+++ b/examples/rag/postgres.php
@@ -51,11 +51,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/qdrant.php b/examples/rag/qdrant.php
index 21380502..544757ff 100644
--- a/examples/rag/qdrant.php
+++ b/examples/rag/qdrant.php
@@ -51,11 +51,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/surrealdb.php b/examples/rag/surrealdb.php
index 6c50873a..2e9779ae 100644
--- a/examples/rag/surrealdb.php
+++ b/examples/rag/surrealdb.php
@@ -55,11 +55,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create($_SERVER['OPENAI_API_KEY']);
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store);
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/rag/typesense.php b/examples/rag/typesense.php
index f19dae60..93a1e319 100644
--- a/examples/rag/typesense.php
+++ b/examples/rag/typesense.php
@@ -51,11 +51,11 @@
 
 // create embeddings for documents
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$vectorizer = new Vectorizer($platform, $embeddings = new Embeddings());
+$vectorizer = new Vectorizer($platform, $embeddings = Embeddings::create());
 $indexer = new Indexer($vectorizer, $store, logger());
 $indexer->index($documents);
 
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $similaritySearch = new SimilaritySearch($platform, $embeddings, $store);
 $toolbox = new Toolbox([$similaritySearch], logger: logger());
diff --git a/examples/replicate/chat-llama.php b/examples/replicate/chat-llama.php
index e1a3aaac..3be7084d 100644
--- a/examples/replicate/chat-llama.php
+++ b/examples/replicate/chat-llama.php
@@ -18,7 +18,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('REPLICATE_API_KEY'), http_client());
-$model = new Llama();
+$model = Llama::create();
 
 $agent = new Agent($platform, $model, logger: logger());
 $messages = new MessageBag(
diff --git a/examples/toolbox/brave.php b/examples/toolbox/brave.php
index 21672778..0e6f6079 100644
--- a/examples/toolbox/brave.php
+++ b/examples/toolbox/brave.php
@@ -22,7 +22,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $brave = new Brave(http_client(), env('BRAVE_API_KEY'));
 $crawler = new Crawler(http_client());
diff --git a/examples/toolbox/clock.php b/examples/toolbox/clock.php
index 4b12af2c..b5eb6e02 100644
--- a/examples/toolbox/clock.php
+++ b/examples/toolbox/clock.php
@@ -22,7 +22,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $metadataFactory = (new MemoryToolFactory())
     ->addTool(Clock::class, 'clock', 'Get the current date and time', 'now');
diff --git a/examples/toolbox/firecrawl-crawl.php b/examples/toolbox/firecrawl-crawl.php
index 75a220f4..3884e097 100644
--- a/examples/toolbox/firecrawl-crawl.php
+++ b/examples/toolbox/firecrawl-crawl.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__) . '/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $firecrawl = new Firecrawl(
     http_client(),
diff --git a/examples/toolbox/firecrawl-map.php b/examples/toolbox/firecrawl-map.php
index a791e708..120d0559 100644
--- a/examples/toolbox/firecrawl-map.php
+++ b/examples/toolbox/firecrawl-map.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__) . '/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $firecrawl = new Firecrawl(
     http_client(),
diff --git a/examples/toolbox/firecrawl-scrape.php b/examples/toolbox/firecrawl-scrape.php
index 1c2fa872..734d2097 100644
--- a/examples/toolbox/firecrawl-scrape.php
+++ b/examples/toolbox/firecrawl-scrape.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__) . '/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $firecrawl = new Firecrawl(
     http_client(),
diff --git a/examples/toolbox/serpapi.php b/examples/toolbox/serpapi.php
index d9aa6524..0e745600 100644
--- a/examples/toolbox/serpapi.php
+++ b/examples/toolbox/serpapi.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $serpApi = new SerpApi(http_client(), env('SERP_API_KEY'));
 $toolbox = new Toolbox([$serpApi], logger: logger());
diff --git a/examples/toolbox/tavily.php b/examples/toolbox/tavily.php
index 42c2f288..62530da4 100644
--- a/examples/toolbox/tavily.php
+++ b/examples/toolbox/tavily.php
@@ -21,7 +21,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $tavily = new Tavily(http_client(), env('TAVILY_API_KEY'));
 $toolbox = new Toolbox([$tavily], logger: logger());
diff --git a/examples/toolbox/weather-event.php b/examples/toolbox/weather-event.php
index e7efa7a1..5ab79ae2 100644
--- a/examples/toolbox/weather-event.php
+++ b/examples/toolbox/weather-event.php
@@ -24,7 +24,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('OPENAI_API_KEY'), http_client());
-$model = new Gpt(Gpt::GPT_4O_MINI);
+$model = Gpt::create(Gpt::GPT_4O_MINI);
 
 $openMeteo = new OpenMeteo(http_client());
 $toolbox = new Toolbox([$openMeteo], logger: logger());
diff --git a/examples/voyage/embeddings.php b/examples/voyage/embeddings.php
index d5720bf9..8b1ab80f 100644
--- a/examples/voyage/embeddings.php
+++ b/examples/voyage/embeddings.php
@@ -15,7 +15,7 @@
 require_once dirname(__DIR__).'/bootstrap.php';
 
 $platform = PlatformFactory::create(env('VOYAGE_API_KEY'), http_client());
-$embeddings = new Voyage();
+$embeddings = Voyage::create();
 
 $result = $platform->invoke($embeddings, <<<TEXT
     Once upon a time, there was a country called Japan. It was a beautiful country with a lot of mountains and rivers.
diff --git a/src/agent/doc/index.rst b/src/agent/doc/index.rst
index 377cf457..f1fa880c 100644
--- a/src/agent/doc/index.rst
+++ b/src/agent/doc/index.rst
@@ -24,7 +24,7 @@ To instantiate an agent, you need to pass a ``Symfony\AI\Platform\PlatformInterf
     use Symfony\AI\Platform\Bridge\OpenAi\PlatformFactory;
 
     $platform = PlatformFactory::create($apiKey);
-    $model = new Gpt(Gpt::GPT_4O_MINI);
+    $model = Gpt::create(Gpt::GPT_4O_MINI);
 
     $agent = new Agent($platform, $model);
 
diff --git a/src/agent/tests/InputProcessor/ModelOverrideInputProcessorTest.php b/src/agent/tests/InputProcessor/ModelOverrideInputProcessorTest.php
index 6696d43a..b5d5f72d 100644
--- a/src/agent/tests/InputProcessor/ModelOverrideInputProcessorTest.php
+++ b/src/agent/tests/InputProcessor/ModelOverrideInputProcessorTest.php
@@ -34,8 +34,8 @@ final class ModelOverrideInputProcessorTest extends TestCase
 {
     public function testProcessInputWithValidModelOption()
     {
-        $gpt = new Gpt();
-        $claude = new Claude();
+        $gpt = Gpt::create();
+        $claude = Claude::create();
         $input = new Input($gpt, new MessageBag(), ['model' => $claude]);
 
         $processor = new ModelOverrideInputProcessor();
@@ -46,7 +46,7 @@ public function testProcessInputWithValidModelOption()
 
     public function testProcessInputWithoutModelOption()
     {
-        $gpt = new Gpt();
+        $gpt = Gpt::create();
         $input = new Input($gpt, new MessageBag(), []);
 
         $processor = new ModelOverrideInputProcessor();
@@ -60,7 +60,7 @@ public function testProcessInputWithInvalidModelOption()
         $this->expectException(InvalidArgumentException::class);
         $this->expectExceptionMessage('Option "model" must be an instance of "Symfony\AI\Platform\Model".');
 
-        $gpt = new Gpt();
+        $gpt = Gpt::create();
         $model = new MessageBag();
         $input = new Input($gpt, new MessageBag(), ['model' => $model]);
 
diff --git a/src/agent/tests/InputProcessor/SystemPromptInputProcessorTest.php b/src/agent/tests/InputProcessor/SystemPromptInputProcessorTest.php
index 23059442..069aebf9 100644
--- a/src/agent/tests/InputProcessor/SystemPromptInputProcessorTest.php
+++ b/src/agent/tests/InputProcessor/SystemPromptInputProcessorTest.php
@@ -47,7 +47,7 @@ public function testProcessInputAddsSystemMessageWhenNoneExists()
     {
         $processor = new SystemPromptInputProcessor('This is a system prompt');
 
-        $input = new Input(new Gpt(), new MessageBag(Message::ofUser('This is a user message')), []);
+        $input = new Input(Gpt::create(), new MessageBag(Message::ofUser('This is a user message')), []);
         $processor->processInput($input);
 
         $messages = $input->messages->getMessages();
@@ -65,7 +65,7 @@ public function testProcessInputDoesNotAddSystemMessageWhenOneExists()
             Message::forSystem('This is already a system prompt'),
             Message::ofUser('This is a user message'),
         );
-        $input = new Input(new Gpt(), $messages, []);
+        $input = new Input(Gpt::create(), $messages, []);
         $processor->processInput($input);
 
         $messages = $input->messages->getMessages();
@@ -92,7 +92,7 @@ public function execute(ToolCall $toolCall): mixed
             }
         );
 
-        $input = new Input(new Gpt(), new MessageBag(Message::ofUser('This is a user message')), []);
+        $input = new Input(Gpt::create(), new MessageBag(Message::ofUser('This is a user message')), []);
         $processor->processInput($input);
 
         $messages = $input->messages->getMessages();
@@ -130,7 +130,7 @@ public function execute(ToolCall $toolCall): mixed
             }
         );
 
-        $input = new Input(new Gpt(), new MessageBag(Message::ofUser('This is a user message')), []);
+        $input = new Input(Gpt::create(), new MessageBag(Message::ofUser('This is a user message')), []);
         $processor->processInput($input);
 
         $messages = $input->messages->getMessages();
@@ -170,7 +170,7 @@ public function execute(ToolCall $toolCall): mixed
             }
         );
 
-        $input = new Input(new Gpt(), new MessageBag(Message::ofUser('This is a user message')), []);
+        $input = new Input(Gpt::create(), new MessageBag(Message::ofUser('This is a user message')), []);
         $processor->processInput($input);
 
         $messages = $input->messages->getMessages();
diff --git a/src/ai-bundle/tests/DependencyInjection/AiBundleTest.php b/src/ai-bundle/tests/DependencyInjection/AiBundleTest.php
index ba0b1993..4a4beb85 100644
--- a/src/ai-bundle/tests/DependencyInjection/AiBundleTest.php
+++ b/src/ai-bundle/tests/DependencyInjection/AiBundleTest.php
@@ -301,7 +301,7 @@ private function getFullConfig(): array
                         'store' => 'my_azure_search_store_service_id',
                         'platform' => 'mistral_platform_service_id',
                         'model' => [
-                            'class' => 'Symfony\AI\Platform\Bridge\Mistral\Embeddings',
+                            'class' => 'Symfony\AI\Platform\Model',
                             'name' => 'mistral-embed',
                             'options' => ['dimension' => 768],
                         ],
diff --git a/src/platform/doc/gemini-server-tools.rst b/src/platform/doc/gemini-server-tools.rst
index 8a606395..8e43ca74 100644
--- a/src/platform/doc/gemini-server-tools.rst
+++ b/src/platform/doc/gemini-server-tools.rst
@@ -25,7 +25,7 @@ The URL Context tool allows Gemini to fetch and analyze content from web pages.
 
 ::
 
-    $model = new Gemini('gemini-2.5-pro-preview-03-25', [
+    $model = Gemini::create('gemini-2.5-pro-preview-03-25', [
         'server_tools' => [
             'url_context' => true
         ]
@@ -42,7 +42,7 @@ The URL Context tool allows Gemini to fetch and analyze content from web pages.
 
 The Google Search tool enables the model to search the web and incorporate search results into its results::
 
-    $model = new Gemini('gemini-2.5-pro-preview-03-25', [
+    $model = Gemini::create('gemini-2.5-pro-preview-03-25', [
         'server_tools' => [
             'google_search' => true
         ]
@@ -58,7 +58,7 @@ The Google Search tool enables the model to search the web and incorporate searc
 
 The Code Execution tool provides a sandboxed environment for running code::
 
-    $model = new Gemini('gemini-2.5-pro-preview-03-25', [
+    $model = Gemini::create('gemini-2.5-pro-preview-03-25', [
         'server_tools' => [
             'code_execution' => true
         ]
@@ -75,7 +75,7 @@ The Code Execution tool provides a sandboxed environment for running code::
 
 You can enable multiple server tools simultaneously::
 
-    $model = new Gemini('gemini-2.5-pro-preview-03-25', [
+    $model = Gemini::create('gemini-2.5-pro-preview-03-25', [
         'server_tools' => [
             'url_context' => true,
             'google_search' => true,
diff --git a/src/platform/doc/index.rst b/src/platform/doc/index.rst
index 98dc0fb3..c115d8f0 100644
--- a/src/platform/doc/index.rst
+++ b/src/platform/doc/index.rst
@@ -36,10 +36,10 @@ For example, to use the OpenAI provider, you would typically do something like t
     $platform = PlatformFactory::create(env('OPENAI_API_KEY'));
 
     // Embeddings Model
-    $embeddings = new Embeddings();
+    $embeddings = Embeddings::create();
 
     // Language Model in version gpt-4o-mini
-    $model = new Gpt(Gpt::GPT_4O_MINI);
+    $model = Gpt::create(Gpt::GPT_4O_MINI);
 
 And with a ``Symfony\AI\Platform\PlatformInterface`` instance, and a ``Symfony\AI\Platform\Model`` instance, you can now
 use the platform to interact with the AI model::
@@ -246,7 +246,7 @@ The standalone usage results in an ``Vector`` instance::
 
     // Initialize Platform
 
-    $embeddings = new Embeddings($platform, Embeddings::TEXT_3_SMALL);
+    $embeddings = Embeddings::create(Embeddings::TEXT_3_SMALL);
 
     $vectors = $platform->invoke($embeddings, $textInput)->asVectors();
 
diff --git a/src/platform/src/Bridge/Anthropic/Claude.php b/src/platform/src/Bridge/Anthropic/Claude.php
index 56d0cc18..7828bddb 100644
--- a/src/platform/src/Bridge/Anthropic/Claude.php
+++ b/src/platform/src/Bridge/Anthropic/Claude.php
@@ -17,7 +17,7 @@
 /**
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
-class Claude extends Model
+final class Claude
 {
     public const HAIKU_3 = 'claude-3-haiku-20240307';
     public const HAIKU_35 = 'claude-3-5-haiku-latest';
@@ -34,10 +34,10 @@ class Claude extends Model
     /**
      * @param array<string, mixed> $options The default options for the model usage
      */
-    public function __construct(
+    public static function create(
         string $name = self::SONNET_37,
         array $options = ['temperature' => 1.0, 'max_tokens' => 1000],
-    ) {
+    ): Model {
         $capabilities = [
             Capability::INPUT_MESSAGES,
             Capability::INPUT_IMAGE,
@@ -46,6 +46,6 @@ public function __construct(
             Capability::TOOL_CALLING,
         ];
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/Bedrock/Nova/Nova.php b/src/platform/src/Bridge/Bedrock/Nova/Nova.php
index 826ae533..f31b8302 100644
--- a/src/platform/src/Bridge/Bedrock/Nova/Nova.php
+++ b/src/platform/src/Bridge/Bedrock/Nova/Nova.php
@@ -17,7 +17,7 @@
 /**
  * @author Björn Altmann
  */
-final class Nova extends Model
+final class Nova
 {
     public const MICRO = 'nova-micro';
     public const LITE = 'nova-lite';
@@ -27,10 +27,10 @@ final class Nova extends Model
     /**
      * @param array<string, mixed> $options The default options for the model usage
      */
-    public function __construct(
+    public static function create(
         string $name = self::PRO,
         array $options = ['temperature' => 1.0, 'max_tokens' => 1000],
-    ) {
+    ): Model {
         $capabilities = [
             Capability::INPUT_MESSAGES,
             Capability::OUTPUT_TEXT,
@@ -41,6 +41,6 @@ public function __construct(
             $capabilities[] = Capability::INPUT_IMAGE;
         }
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/Cerebras/Model.php b/src/platform/src/Bridge/Cerebras/Model.php
index 3df43a82..b2fcfb91 100644
--- a/src/platform/src/Bridge/Cerebras/Model.php
+++ b/src/platform/src/Bridge/Cerebras/Model.php
@@ -8,7 +8,7 @@
 /**
  * @author Junaid Farooq <ulislam.junaid125@gmail.com>
  */
-final class Model extends BaseModel
+final class Model
 {
     public const LLAMA_4_SCOUT_17B_16E_INSTRUCT = 'llama-4-scout-17b-16e-instruct';
     public const LLAMA3_1_8B = 'llama3.1-8b';
@@ -29,11 +29,11 @@ final class Model extends BaseModel
     /**
      * @see https://inference-docs.cerebras.ai/api-reference/chat-completions for details like options
      */
-    public function __construct(
+    public static function create(
         string $name = self::LLAMA3_1_8B,
         array $capabilities = self::CAPABILITIES,
         array $options = [],
-    ) {
-        parent::__construct($name, $capabilities, $options);
+    ): BaseModel {
+        return new BaseModel($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/Gemini/Embeddings.php b/src/platform/src/Bridge/Gemini/Embeddings.php
index 17fcafd0..856cc3fd 100644
--- a/src/platform/src/Bridge/Gemini/Embeddings.php
+++ b/src/platform/src/Bridge/Gemini/Embeddings.php
@@ -18,7 +18,7 @@
 /**
  * @author Valtteri R <valtzu@gmail.com>
  */
-class Embeddings extends Model
+final class Embeddings
 {
     /** Supported dimensions: 3072, 1536, or 768 */
     public const GEMINI_EMBEDDING_EXP_03_07 = 'gemini-embedding-exp-03-07';
@@ -30,8 +30,8 @@ class Embeddings extends Model
     /**
      * @param array{dimensions?: int, task_type?: TaskType|string} $options
      */
-    public function __construct(string $name = self::GEMINI_EMBEDDING_EXP_03_07, array $options = [])
+    public static function create(string $name = self::GEMINI_EMBEDDING_EXP_03_07, array $options = []): Model
     {
-        parent::__construct($name, [Capability::INPUT_MULTIPLE], $options);
+        return new Model($name, [Capability::INPUT_MULTIPLE], $options);
     }
 }
diff --git a/src/platform/src/Bridge/Gemini/Gemini.php b/src/platform/src/Bridge/Gemini/Gemini.php
index b2c4b00b..f4a0bfe8 100644
--- a/src/platform/src/Bridge/Gemini/Gemini.php
+++ b/src/platform/src/Bridge/Gemini/Gemini.php
@@ -17,7 +17,7 @@
 /**
  * @author Roy Garrido
  */
-class Gemini extends Model
+final class Gemini
 {
     public const GEMINI_2_FLASH = 'gemini-2.0-flash';
     public const GEMINI_2_PRO = 'gemini-2.0-pro-exp-02-05';
@@ -28,7 +28,7 @@ class Gemini extends Model
     /**
      * @param array<string, mixed> $options The default options for the model usage
      */
-    public function __construct(string $name = self::GEMINI_2_PRO, array $options = ['temperature' => 1.0])
+    public static function create(string $name = self::GEMINI_2_PRO, array $options = ['temperature' => 1.0]): Model
     {
         $capabilities = [
             Capability::INPUT_MESSAGES,
@@ -40,6 +40,6 @@ public function __construct(string $name = self::GEMINI_2_PRO, array $options =
             Capability::TOOL_CALLING,
         ];
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/LmStudio/Completions.php b/src/platform/src/Bridge/LmStudio/Completions.php
index 361ca412..61fb8744 100644
--- a/src/platform/src/Bridge/LmStudio/Completions.php
+++ b/src/platform/src/Bridge/LmStudio/Completions.php
@@ -17,7 +17,7 @@
 /**
  * @author André Lubian <lubiana123@gmail.com>
  */
-class Completions extends Model
+final class Completions
 {
     public const DEFAULT_CAPABILITIES = [
         Capability::INPUT_MESSAGES,
@@ -25,11 +25,11 @@ class Completions extends Model
         Capability::OUTPUT_STREAMING,
     ];
 
-    public function __construct(
+    public static function create(
         string $name,
         array $options = ['temperature' => 0.7],
         array $capabilities = self::DEFAULT_CAPABILITIES,
-    ) {
-        parent::__construct($name, $capabilities, $options);
+    ): Model {
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/LmStudio/Embeddings.php b/src/platform/src/Bridge/LmStudio/Embeddings.php
index 7d899c21..af570202 100644
--- a/src/platform/src/Bridge/LmStudio/Embeddings.php
+++ b/src/platform/src/Bridge/LmStudio/Embeddings.php
@@ -16,6 +16,10 @@
 /**
  * @author André Lubian <lubiana123@gmail.com>
  */
-class Embeddings extends Model
+final class Embeddings
 {
+    public static function create(string $name, array $capabilities = [], array $options = []): Model
+    {
+        return new Model($name, $capabilities, $options);
+    }
 }
diff --git a/src/platform/src/Bridge/Meta/Llama.php b/src/platform/src/Bridge/Meta/Llama.php
index d6d50e9e..745cfe8a 100644
--- a/src/platform/src/Bridge/Meta/Llama.php
+++ b/src/platform/src/Bridge/Meta/Llama.php
@@ -17,7 +17,7 @@
 /**
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
-class Llama extends Model
+final class Llama
 {
     public const V3_3_70B_INSTRUCT = 'llama-3.3-70B-Instruct';
     public const V3_2_90B_VISION_INSTRUCT = 'llama-3.2-90b-vision-instruct';
@@ -38,13 +38,13 @@ class Llama extends Model
     /**
      * @param array<string, mixed> $options
      */
-    public function __construct(string $name = self::V3_1_405B_INSTRUCT, array $options = [])
+    public static function create(string $name = self::V3_1_405B_INSTRUCT, array $options = []): Model
     {
         $capabilities = [
             Capability::INPUT_MESSAGES,
             Capability::OUTPUT_TEXT,
         ];
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/Mistral/Embeddings.php b/src/platform/src/Bridge/Mistral/Embeddings.php
index 6f96f5f4..ad70e08f 100644
--- a/src/platform/src/Bridge/Mistral/Embeddings.php
+++ b/src/platform/src/Bridge/Mistral/Embeddings.php
@@ -17,17 +17,17 @@
 /**
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
-final class Embeddings extends Model
+final class Embeddings
 {
     public const MISTRAL_EMBED = 'mistral-embed';
 
     /**
      * @param array<string, mixed> $options
      */
-    public function __construct(
+    public static function create(
         string $name = self::MISTRAL_EMBED,
         array $options = [],
-    ) {
-        parent::__construct($name, [Capability::INPUT_MULTIPLE], $options);
+    ): Model {
+        return new Model($name, [Capability::INPUT_MULTIPLE], $options);
     }
 }
diff --git a/src/platform/src/Bridge/Mistral/Mistral.php b/src/platform/src/Bridge/Mistral/Mistral.php
index 62fec67e..1365c332 100644
--- a/src/platform/src/Bridge/Mistral/Mistral.php
+++ b/src/platform/src/Bridge/Mistral/Mistral.php
@@ -17,7 +17,7 @@
 /**
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
-final class Mistral extends Model
+final class Mistral
 {
     public const CODESTRAL = 'codestral-latest';
     public const CODESTRAL_MAMBA = 'open-codestral-mamba';
@@ -33,10 +33,10 @@ final class Mistral extends Model
     /**
      * @param array<string, mixed> $options
      */
-    public function __construct(
+    public static function create(
         string $name = self::MISTRAL_LARGE,
         array $options = [],
-    ) {
+    ): Model {
         $capabilities = [
             Capability::INPUT_MESSAGES,
             Capability::OUTPUT_TEXT,
@@ -61,6 +61,6 @@ public function __construct(
             $capabilities[] = Capability::TOOL_CALLING;
         }
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/Ollama/Ollama.php b/src/platform/src/Bridge/Ollama/Ollama.php
index cca4c464..a4f7ebaf 100644
--- a/src/platform/src/Bridge/Ollama/Ollama.php
+++ b/src/platform/src/Bridge/Ollama/Ollama.php
@@ -17,7 +17,7 @@
 /**
  * @author Joshua Behrens <code@joshua-behrens.de>
  */
-class Ollama extends Model
+final class Ollama
 {
     public const DEEPSEEK_R_1 = 'deepseek-r1';
     public const GEMMA_3_N = 'gemma3n';
@@ -63,7 +63,7 @@ class Ollama extends Model
     /**
      * @param array<string, mixed> $options
      */
-    public function __construct(string $name = self::LLAMA_3_2, array $options = [])
+    public static function create(string $name = self::LLAMA_3_2, array $options = []): Model
     {
         $capabilities = [];
 
@@ -75,6 +75,6 @@ public function __construct(string $name = self::LLAMA_3_2, array $options = [])
             }
         }
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/OpenAi/DallE.php b/src/platform/src/Bridge/OpenAi/DallE.php
index 40b071cf..30ee1cfa 100644
--- a/src/platform/src/Bridge/OpenAi/DallE.php
+++ b/src/platform/src/Bridge/OpenAi/DallE.php
@@ -17,19 +17,21 @@
 /**
  * @author Denis Zunke <denis.zunke@gmail.com>
  */
-class DallE extends Model
+final class DallE
 {
     public const DALL_E_2 = 'dall-e-2';
     public const DALL_E_3 = 'dall-e-3';
 
-    /** @param array<string, mixed> $options The default options for the model usage */
-    public function __construct(string $name = self::DALL_E_2, array $options = [])
+    /**
+     * @param array<string, mixed> $options The default options for the model usage
+     */
+    public static function create(string $name = self::DALL_E_2, array $options = []): Model
     {
         $capabilities = [
             Capability::INPUT_TEXT,
             Capability::OUTPUT_IMAGE,
         ];
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/OpenAi/Embeddings.php b/src/platform/src/Bridge/OpenAi/Embeddings.php
index 80472e8e..4cc45cf0 100644
--- a/src/platform/src/Bridge/OpenAi/Embeddings.php
+++ b/src/platform/src/Bridge/OpenAi/Embeddings.php
@@ -16,7 +16,7 @@
 /**
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
-class Embeddings extends Model
+final class Embeddings
 {
     public const TEXT_ADA_002 = 'text-embedding-ada-002';
     public const TEXT_3_LARGE = 'text-embedding-3-large';
@@ -25,8 +25,8 @@ class Embeddings extends Model
     /**
      * @param array<string, mixed> $options
      */
-    public function __construct(string $name = self::TEXT_3_SMALL, array $options = [])
+    public static function create(string $name = self::TEXT_3_SMALL, array $options = []): Model
     {
-        parent::__construct($name, [], $options);
+        return new Model($name, [], $options);
     }
 }
diff --git a/src/platform/src/Bridge/OpenAi/Gpt.php b/src/platform/src/Bridge/OpenAi/Gpt.php
index 4251ccbc..e0a1b6e0 100644
--- a/src/platform/src/Bridge/OpenAi/Gpt.php
+++ b/src/platform/src/Bridge/OpenAi/Gpt.php
@@ -18,7 +18,7 @@
  * @author Christopher Hertel <mail@christopher-hertel.de>
  * @author Oskar Stark <oskarstark@googlemail.com>
  */
-class Gpt extends Model
+final class Gpt
 {
     public const GPT_35_TURBO = 'gpt-3.5-turbo';
     public const GPT_35_TURBO_INSTRUCT = 'gpt-3.5-turbo-instruct';
@@ -62,10 +62,10 @@ class Gpt extends Model
     /**
      * @param array<mixed> $options The default options for the model usage
      */
-    public function __construct(
+    public static function create(
         string $name = self::GPT_4O,
         array $options = ['temperature' => 1.0],
-    ) {
+    ): Model {
         $capabilities = [
             Capability::INPUT_MESSAGES,
             Capability::OUTPUT_TEXT,
@@ -85,6 +85,6 @@ public function __construct(
             $capabilities[] = Capability::OUTPUT_STRUCTURED;
         }
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/OpenAi/Whisper.php b/src/platform/src/Bridge/OpenAi/Whisper.php
index 24e8ffe1..3ec65d7b 100644
--- a/src/platform/src/Bridge/OpenAi/Whisper.php
+++ b/src/platform/src/Bridge/OpenAi/Whisper.php
@@ -17,20 +17,20 @@
 /**
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
-class Whisper extends Model
+final class Whisper
 {
     public const WHISPER_1 = 'whisper-1';
 
     /**
      * @param array<string, mixed> $options
      */
-    public function __construct(string $name = self::WHISPER_1, array $options = [])
+    public static function create(string $name = self::WHISPER_1, array $options = []): Model
     {
         $capabilities = [
             Capability::INPUT_AUDIO,
             Capability::OUTPUT_TEXT,
         ];
 
-        parent::__construct($name, $capabilities, $options);
+        return new Model($name, $capabilities, $options);
     }
 }
diff --git a/src/platform/src/Bridge/Voyage/Voyage.php b/src/platform/src/Bridge/Voyage/Voyage.php
index 95574849..2a21ef85 100644
--- a/src/platform/src/Bridge/Voyage/Voyage.php
+++ b/src/platform/src/Bridge/Voyage/Voyage.php
@@ -17,7 +17,7 @@
 /**
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
-class Voyage extends Model
+final class Voyage
 {
     public const V3 = 'voyage-3';
     public const V3_LITE = 'voyage-3-lite';
@@ -29,8 +29,8 @@ class Voyage extends Model
     /**
      * @param array<string, mixed> $options
      */
-    public function __construct(string $name = self::V3, array $options = [])
+    public static function create(string $name = self::V3, array $options = []): Model
     {
-        parent::__construct($name, [Capability::INPUT_MULTIPLE], $options);
+        return new Model($name, [Capability::INPUT_MULTIPLE], $options);
     }
 }
diff --git a/src/platform/src/Model.php b/src/platform/src/Model.php
index 6594b972..5d335dcc 100644
--- a/src/platform/src/Model.php
+++ b/src/platform/src/Model.php
@@ -14,7 +14,7 @@
 /**
  * @author Christopher Hertel <mail@christopher-hertel.de>
  */
-class Model
+final class Model
 {
     /**
      * @param Capability[]         $capabilities
diff --git a/src/platform/tests/Bridge/Albert/EmbeddingsModelClientTest.php b/src/platform/tests/Bridge/Albert/EmbeddingsModelClientTest.php
index a915a7c8..ac21d52c 100644
--- a/src/platform/tests/Bridge/Albert/EmbeddingsModelClientTest.php
+++ b/src/platform/tests/Bridge/Albert/EmbeddingsModelClientTest.php
@@ -58,7 +58,7 @@ public function testSupportsEmbeddingsModel()
             'https://albert.example.com/'
         );
 
-        $embeddingsModel = new Embeddings('text-embedding-ada-002');
+        $embeddingsModel = Embeddings::create('text-embedding-ada-002');
         $this->assertTrue($client->supports($embeddingsModel));
     }
 
@@ -70,7 +70,7 @@ public function testDoesNotSupportNonEmbeddingsModel()
             'https://albert.example.com/'
         );
 
-        $gptModel = new Gpt('gpt-3.5-turbo');
+        $gptModel = Gpt::create('gpt-3.5-turbo');
         $this->assertFalse($client->supports($gptModel));
     }
 
@@ -90,7 +90,7 @@ public function testRequestSendsCorrectHttpRequest(array|string $payload, array
             'https://albert.example.com/v1'
         );
 
-        $model = new Embeddings('text-embedding-ada-002');
+        $model = Embeddings::create('text-embedding-ada-002');
         $result = $client->request($model, $payload, $options);
 
         $this->assertNotNull($capturedRequest);
@@ -151,7 +151,7 @@ public function testRequestHandlesBaseUrlWithoutTrailingSlash()
             'https://albert.example.com/v1'
         );
 
-        $model = new Embeddings('text-embedding-ada-002');
+        $model = Embeddings::create('text-embedding-ada-002');
         $client->request($model, ['input' => 'test']);
 
         $this->assertSame('https://albert.example.com/v1/embeddings', $capturedUrl);
@@ -172,7 +172,7 @@ public function testRequestHandlesBaseUrlWithTrailingSlash()
             'https://albert.example.com/v1'
         );
 
-        $model = new Embeddings('text-embedding-ada-002');
+        $model = Embeddings::create('text-embedding-ada-002');
         $client->request($model, ['input' => 'test']);
 
         $this->assertSame('https://albert.example.com/v1/embeddings', $capturedUrl);
diff --git a/src/platform/tests/Bridge/Albert/GptModelClientTest.php b/src/platform/tests/Bridge/Albert/GptModelClientTest.php
index 06c18a34..84d0ef4a 100644
--- a/src/platform/tests/Bridge/Albert/GptModelClientTest.php
+++ b/src/platform/tests/Bridge/Albert/GptModelClientTest.php
@@ -68,7 +68,7 @@ public function testConstructorWrapsHttpClientInEventSourceHttpClient()
         $mockResponse = new JsonMockResponse(['choices' => []]);
         $mockHttpClient->setResponseFactory([$mockResponse]);
 
-        $model = new Gpt('gpt-3.5-turbo');
+        $model = Gpt::create('gpt-3.5-turbo');
         $client->request($model, ['messages' => []]);
     }
 
@@ -89,7 +89,7 @@ public function testConstructorAcceptsEventSourceHttpClient()
         $mockResponse = new JsonMockResponse(['choices' => []]);
         $mockHttpClient->setResponseFactory([$mockResponse]);
 
-        $model = new Gpt('gpt-3.5-turbo');
+        $model = Gpt::create('gpt-3.5-turbo');
         $client->request($model, ['messages' => []]);
     }
 
@@ -101,7 +101,7 @@ public function testSupportsGptModel()
             'https://albert.example.com/'
         );
 
-        $gptModel = new Gpt('gpt-3.5-turbo');
+        $gptModel = Gpt::create('gpt-3.5-turbo');
         $this->assertTrue($client->supports($gptModel));
     }
 
@@ -113,7 +113,7 @@ public function testDoesNotSupportNonGptModel()
             'https://albert.example.com/'
         );
 
-        $embeddingsModel = new Embeddings('text-embedding-ada-002');
+        $embeddingsModel = Embeddings::create('text-embedding-ada-002');
         $this->assertFalse($client->supports($embeddingsModel));
     }
 
@@ -133,7 +133,7 @@ public function testRequestSendsCorrectHttpRequest(array|string $payload, array
             'https://albert.example.com/v1'
         );
 
-        $model = new Gpt('gpt-3.5-turbo');
+        $model = Gpt::create('gpt-3.5-turbo');
         $result = $client->request($model, $payload, $options);
 
         $this->assertNotNull($capturedRequest);
@@ -200,7 +200,7 @@ public function testRequestHandlesBaseUrlWithoutTrailingSlash()
             'https://albert.example.com/v1'
         );
 
-        $model = new Gpt('gpt-3.5-turbo');
+        $model = Gpt::create('gpt-3.5-turbo');
         $client->request($model, ['messages' => []]);
 
         $this->assertSame('https://albert.example.com/v1/chat/completions', $capturedUrl);
@@ -221,7 +221,7 @@ public function testRequestHandlesBaseUrlWithTrailingSlash()
             'https://albert.example.com/v1'
         );
 
-        $model = new Gpt('gpt-3.5-turbo');
+        $model = Gpt::create('gpt-3.5-turbo');
         $client->request($model, ['messages' => []]);
 
         $this->assertSame('https://albert.example.com/v1/chat/completions', $capturedUrl);
diff --git a/src/platform/tests/Bridge/Azure/OpenAi/EmbeddingsModelClientTest.php b/src/platform/tests/Bridge/Azure/OpenAi/EmbeddingsModelClientTest.php
index f3cbc4f4..6c18e08a 100644
--- a/src/platform/tests/Bridge/Azure/OpenAi/EmbeddingsModelClientTest.php
+++ b/src/platform/tests/Bridge/Azure/OpenAi/EmbeddingsModelClientTest.php
@@ -77,7 +77,7 @@ public function testItIsSupportingTheCorrectModel()
     {
         $client = new EmbeddingsModelClient(new MockHttpClient(), 'test.azure.com', 'deployment', '2023-12-01', 'api-key');
 
-        $this->assertTrue($client->supports(new Embeddings()));
+        $this->assertTrue($client->supports(Embeddings::create()));
     }
 
     public function testItIsExecutingTheCorrectRequest()
@@ -93,6 +93,6 @@ public function testItIsExecutingTheCorrectRequest()
 
         $httpClient = new MockHttpClient([$resultCallback]);
         $client = new EmbeddingsModelClient($httpClient, 'test.azure.com', 'embeddings-deployment', '2023-12-01', 'test-api-key');
-        $client->request(new Embeddings(), 'Hello, world!');
+        $client->request(Embeddings::create(), 'Hello, world!');
     }
 }
diff --git a/src/platform/tests/Bridge/Azure/OpenAi/GptModelClientTest.php b/src/platform/tests/Bridge/Azure/OpenAi/GptModelClientTest.php
index a51abffd..f0d19ea8 100644
--- a/src/platform/tests/Bridge/Azure/OpenAi/GptModelClientTest.php
+++ b/src/platform/tests/Bridge/Azure/OpenAi/GptModelClientTest.php
@@ -77,7 +77,7 @@ public function testItIsSupportingTheCorrectModel()
     {
         $client = new GptModelClient(new MockHttpClient(), 'test.azure.com', 'deployment', '2023-12-01', 'api-key');
 
-        $this->assertTrue($client->supports(new Gpt()));
+        $this->assertTrue($client->supports(Gpt::create()));
     }
 
     public function testItIsExecutingTheCorrectRequest()
@@ -93,6 +93,6 @@ public function testItIsExecutingTheCorrectRequest()
 
         $httpClient = new MockHttpClient([$resultCallback]);
         $client = new GptModelClient($httpClient, 'test.azure.com', 'gpt-deployment', '2023-12-01', 'test-api-key');
-        $client->request(new Gpt(), ['messages' => [['role' => 'user', 'content' => 'Hello']]]);
+        $client->request(Gpt::create(), ['messages' => [['role' => 'user', 'content' => 'Hello']]]);
     }
 }
diff --git a/src/platform/tests/Bridge/Azure/OpenAi/WhisperModelClientTest.php b/src/platform/tests/Bridge/Azure/OpenAi/WhisperModelClientTest.php
index 450d694f..35e7cbb2 100644
--- a/src/platform/tests/Bridge/Azure/OpenAi/WhisperModelClientTest.php
+++ b/src/platform/tests/Bridge/Azure/OpenAi/WhisperModelClientTest.php
@@ -78,7 +78,7 @@ public function testItSupportsWhisperModel()
             '2023-12-01-preview',
             'test-key'
         );
-        $model = new Whisper();
+        $model = Whisper::create();
 
         $this->assertTrue($client->supports($model));
     }
@@ -95,7 +95,7 @@ function ($method, $url): MockResponse {
         ]);
 
         $client = new WhisperModelClient($httpClient, 'test.azure.com', 'whspr', '2023-12', 'test-key');
-        $model = new Whisper();
+        $model = Whisper::create();
         $payload = ['file' => 'audio-data'];
 
         $client->request($model, $payload);
@@ -115,7 +115,7 @@ function ($method, $url): MockResponse {
         ]);
 
         $client = new WhisperModelClient($httpClient, 'test.azure.com', 'whspr', '2023-12', 'test-key');
-        $model = new Whisper();
+        $model = Whisper::create();
         $payload = ['file' => 'audio-data'];
         $options = ['task' => Task::TRANSCRIPTION];
 
@@ -136,7 +136,7 @@ function ($method, $url): MockResponse {
         ]);
 
         $client = new WhisperModelClient($httpClient, 'test.azure.com', 'whspr', '2023-12', 'test-key');
-        $model = new Whisper();
+        $model = Whisper::create();
         $payload = ['file' => 'audio-data'];
         $options = ['task' => Task::TRANSLATION];
 
diff --git a/src/platform/tests/Bridge/Bedrock/Nova/ContractTest.php b/src/platform/tests/Bridge/Bedrock/Nova/ContractTest.php
index b04583e6..1ce310d8 100644
--- a/src/platform/tests/Bridge/Bedrock/Nova/ContractTest.php
+++ b/src/platform/tests/Bridge/Bedrock/Nova/ContractTest.php
@@ -55,7 +55,7 @@ public function testConvert(MessageBag $bag, array $expected)
             new UserMessageNormalizer(),
         );
 
-        $this->assertEquals($expected, $contract->createRequestPayload(new Nova(), $bag));
+        $this->assertEquals($expected, $contract->createRequestPayload(Nova::create(), $bag));
     }
 
     /**
diff --git a/src/platform/tests/Bridge/Gemini/Contract/AssistantMessageNormalizerTest.php b/src/platform/tests/Bridge/Gemini/Contract/AssistantMessageNormalizerTest.php
index 6a494033..b3f803a0 100644
--- a/src/platform/tests/Bridge/Gemini/Contract/AssistantMessageNormalizerTest.php
+++ b/src/platform/tests/Bridge/Gemini/Contract/AssistantMessageNormalizerTest.php
@@ -36,7 +36,7 @@ public function testSupportsNormalization()
         $normalizer = new AssistantMessageNormalizer();
 
         $this->assertTrue($normalizer->supportsNormalization(new AssistantMessage('Hello'), context: [
-            Contract::CONTEXT_MODEL => new Gemini(),
+            Contract::CONTEXT_MODEL => Gemini::create(),
         ]));
         $this->assertFalse($normalizer->supportsNormalization('not an assistant message'));
     }
diff --git a/src/platform/tests/Bridge/Gemini/Contract/MessageBagNormalizerTest.php b/src/platform/tests/Bridge/Gemini/Contract/MessageBagNormalizerTest.php
index 25723bde..7f83f242 100644
--- a/src/platform/tests/Bridge/Gemini/Contract/MessageBagNormalizerTest.php
+++ b/src/platform/tests/Bridge/Gemini/Contract/MessageBagNormalizerTest.php
@@ -46,7 +46,7 @@ public function testSupportsNormalization()
         $normalizer = new MessageBagNormalizer();
 
         $this->assertTrue($normalizer->supportsNormalization(new MessageBag(), context: [
-            Contract::CONTEXT_MODEL => new Gemini(),
+            Contract::CONTEXT_MODEL => Gemini::create(),
         ]));
         $this->assertFalse($normalizer->supportsNormalization('not a message bag'));
     }
diff --git a/src/platform/tests/Bridge/Gemini/Contract/ToolCallMessageNormalizerTest.php b/src/platform/tests/Bridge/Gemini/Contract/ToolCallMessageNormalizerTest.php
index 0395da8d..2c87da46 100644
--- a/src/platform/tests/Bridge/Gemini/Contract/ToolCallMessageNormalizerTest.php
+++ b/src/platform/tests/Bridge/Gemini/Contract/ToolCallMessageNormalizerTest.php
@@ -36,7 +36,7 @@ public function testSupportsNormalization()
         $normalizer = new ToolCallMessageNormalizer();
 
         $this->assertTrue($normalizer->supportsNormalization(new ToolCallMessage(new ToolCall('', '', []), ''), context: [
-            Contract::CONTEXT_MODEL => new Gemini(),
+            Contract::CONTEXT_MODEL => Gemini::create(),
         ]));
         $this->assertFalse($normalizer->supportsNormalization('not a tool call'));
     }
diff --git a/src/platform/tests/Bridge/Gemini/Contract/ToolNormalizerTest.php b/src/platform/tests/Bridge/Gemini/Contract/ToolNormalizerTest.php
index 7cf2b0ef..7df7afee 100644
--- a/src/platform/tests/Bridge/Gemini/Contract/ToolNormalizerTest.php
+++ b/src/platform/tests/Bridge/Gemini/Contract/ToolNormalizerTest.php
@@ -37,7 +37,7 @@ public function testSupportsNormalization()
         $normalizer = new ToolNormalizer();
 
         $this->assertTrue($normalizer->supportsNormalization(new Tool(new ExecutionReference(ToolNoParams::class), 'test', 'test'), context: [
-            Contract::CONTEXT_MODEL => new Gemini(),
+            Contract::CONTEXT_MODEL => Gemini::create(),
         ]));
         $this->assertFalse($normalizer->supportsNormalization('not a tool'));
     }
diff --git a/src/platform/tests/Bridge/Gemini/Contract/UserMessageNormalizerTest.php b/src/platform/tests/Bridge/Gemini/Contract/UserMessageNormalizerTest.php
index 5ccf9970..b3a90fb7 100644
--- a/src/platform/tests/Bridge/Gemini/Contract/UserMessageNormalizerTest.php
+++ b/src/platform/tests/Bridge/Gemini/Contract/UserMessageNormalizerTest.php
@@ -42,7 +42,7 @@ public function testSupportsNormalization()
         $normalizer = new UserMessageNormalizer();
 
         $this->assertTrue($normalizer->supportsNormalization(new UserMessage(new Text('Hello')), context: [
-            Contract::CONTEXT_MODEL => new Gemini(),
+            Contract::CONTEXT_MODEL => Gemini::create(),
         ]));
         $this->assertFalse($normalizer->supportsNormalization('not a user message'));
     }
diff --git a/src/platform/tests/Bridge/Gemini/Embeddings/ModelClientTest.php b/src/platform/tests/Bridge/Gemini/Embeddings/ModelClientTest.php
index 5eda6889..6b6db019 100644
--- a/src/platform/tests/Bridge/Gemini/Embeddings/ModelClientTest.php
+++ b/src/platform/tests/Bridge/Gemini/Embeddings/ModelClientTest.php
@@ -64,7 +64,7 @@ public function testItMakesARequestWithCorrectPayload()
             )
             ->willReturn($result);
 
-        $model = new Embeddings(Embeddings::GEMINI_EMBEDDING_EXP_03_07, ['dimensions' => 1536, 'task_type' => 'CLASSIFICATION']);
+        $model = Embeddings::create(Embeddings::GEMINI_EMBEDDING_EXP_03_07, ['dimensions' => 1536, 'task_type' => 'CLASSIFICATION']);
 
         $result = (new ModelClient($httpClient, 'test'))->request($model, ['payload1', 'payload2']);
         $this->assertSame(json_decode($this->getEmbeddingStub(), true), $result->getData());
diff --git a/src/platform/tests/Bridge/LmStudio/Completions/ModelClientTest.php b/src/platform/tests/Bridge/LmStudio/Completions/ModelClientTest.php
index b543f29a..205c6b0d 100644
--- a/src/platform/tests/Bridge/LmStudio/Completions/ModelClientTest.php
+++ b/src/platform/tests/Bridge/LmStudio/Completions/ModelClientTest.php
@@ -31,7 +31,7 @@ public function testItIsSupportingTheCorrectModel()
     {
         $client = new ModelClient(new MockHttpClient(), 'http://localhost:1234');
 
-        $this->assertTrue($client->supports(new Completions('test-model')));
+        $this->assertTrue($client->supports(Completions::create('test-model')));
     }
 
     public function testItIsExecutingTheCorrectRequest()
@@ -57,7 +57,7 @@ public function testItIsExecutingTheCorrectRequest()
             ],
         ];
 
-        $client->request(new Completions('test-model'), $payload);
+        $client->request(Completions::create('test-model'), $payload);
     }
 
     public function testItMergesOptionsWithPayload()
@@ -83,7 +83,7 @@ public function testItMergesOptionsWithPayload()
             ],
         ];
 
-        $client->request(new Completions('test-model'), $payload, ['temperature' => 0.7]);
+        $client->request(Completions::create('test-model'), $payload, ['temperature' => 0.7]);
     }
 
     public function testItUsesEventSourceHttpClient()
diff --git a/src/platform/tests/Bridge/LmStudio/Completions/ResultConverterTest.php b/src/platform/tests/Bridge/LmStudio/Completions/ResultConverterTest.php
index 4e7c1c4b..20c550d7 100644
--- a/src/platform/tests/Bridge/LmStudio/Completions/ResultConverterTest.php
+++ b/src/platform/tests/Bridge/LmStudio/Completions/ResultConverterTest.php
@@ -29,6 +29,6 @@ public function testItSupportsCompletionsModel()
     {
         $converter = new ResultConverter();
 
-        $this->assertTrue($converter->supports(new Completions('test-model')));
+        $this->assertTrue($converter->supports(Completions::create('test-model')));
     }
 }
diff --git a/src/platform/tests/Bridge/LmStudio/Embeddings/ModelClientTest.php b/src/platform/tests/Bridge/LmStudio/Embeddings/ModelClientTest.php
index 1ab245d1..eb23c191 100644
--- a/src/platform/tests/Bridge/LmStudio/Embeddings/ModelClientTest.php
+++ b/src/platform/tests/Bridge/LmStudio/Embeddings/ModelClientTest.php
@@ -29,7 +29,7 @@ public function testItIsSupportingTheCorrectModel()
     {
         $client = new ModelClient(new MockHttpClient(), 'http://localhost:1234');
 
-        $this->assertTrue($client->supports(new Embeddings('test-model')));
+        $this->assertTrue($client->supports(Embeddings::create('test-model')));
     }
 
     public function testItIsExecutingTheCorrectRequest()
@@ -45,7 +45,7 @@ public function testItIsExecutingTheCorrectRequest()
         $httpClient = new MockHttpClient([$resultCallback]);
         $client = new ModelClient($httpClient, 'http://localhost:1234');
 
-        $model = new Embeddings('test-model');
+        $model = Embeddings::create('test-model');
 
         $client->request($model, 'Hello, world!');
     }
@@ -66,7 +66,7 @@ public function testItMergesOptionsWithPayload()
         $httpClient = new MockHttpClient([$resultCallback]);
         $client = new ModelClient($httpClient, 'http://localhost:1234');
 
-        $model = new Embeddings('test-model');
+        $model = Embeddings::create('test-model');
 
         $client->request($model, 'Hello, world!', ['custom_option' => 'value']);
     }
@@ -84,7 +84,7 @@ public function testItHandlesArrayInput()
         $httpClient = new MockHttpClient([$resultCallback]);
         $client = new ModelClient($httpClient, 'http://localhost:1234');
 
-        $model = new Embeddings('test-model');
+        $model = Embeddings::create('test-model');
 
         $client->request($model, ['Hello', 'world']);
     }
diff --git a/src/platform/tests/Bridge/LmStudio/Embeddings/ResultConverterTest.php b/src/platform/tests/Bridge/LmStudio/Embeddings/ResultConverterTest.php
index 16b6b25d..4e91a23c 100644
--- a/src/platform/tests/Bridge/LmStudio/Embeddings/ResultConverterTest.php
+++ b/src/platform/tests/Bridge/LmStudio/Embeddings/ResultConverterTest.php
@@ -84,6 +84,6 @@ public function testItSupportsEmbeddingsModel()
     {
         $converter = new ResultConverter();
 
-        $this->assertTrue($converter->supports(new Embeddings('test-model')));
+        $this->assertTrue($converter->supports(Embeddings::create('test-model')));
     }
 }
diff --git a/src/platform/tests/Bridge/Ollama/Contract/AssistantMessageNormalizerTest.php b/src/platform/tests/Bridge/Ollama/Contract/AssistantMessageNormalizerTest.php
index 465b117c..5dd1f4ad 100644
--- a/src/platform/tests/Bridge/Ollama/Contract/AssistantMessageNormalizerTest.php
+++ b/src/platform/tests/Bridge/Ollama/Contract/AssistantMessageNormalizerTest.php
@@ -42,7 +42,7 @@ protected function setUp(): void
     public function testSupportsNormalization()
     {
         $this->assertTrue($this->normalizer->supportsNormalization(new AssistantMessage('Hello'), context: [
-            Contract::CONTEXT_MODEL => new Ollama(),
+            Contract::CONTEXT_MODEL => Ollama::create(),
         ]));
         $this->assertFalse($this->normalizer->supportsNormalization(new AssistantMessage('Hello'), context: [
             Contract::CONTEXT_MODEL => new Model('any-model'),
diff --git a/src/platform/tests/Bridge/Ollama/OllamaResultConverterTest.php b/src/platform/tests/Bridge/Ollama/OllamaResultConverterTest.php
index 79120620..567aad12 100644
--- a/src/platform/tests/Bridge/Ollama/OllamaResultConverterTest.php
+++ b/src/platform/tests/Bridge/Ollama/OllamaResultConverterTest.php
@@ -42,7 +42,7 @@ public function testSupportsLlamaModel()
     {
         $converter = new OllamaResultConverter();
 
-        $this->assertTrue($converter->supports(new Ollama()));
+        $this->assertTrue($converter->supports(Ollama::create()));
         $this->assertFalse($converter->supports(new Model('any-model')));
     }
 
diff --git a/src/platform/tests/Bridge/Ollama/OllamaTest.php b/src/platform/tests/Bridge/Ollama/OllamaTest.php
index e98d1efd..8d9e5104 100644
--- a/src/platform/tests/Bridge/Ollama/OllamaTest.php
+++ b/src/platform/tests/Bridge/Ollama/OllamaTest.php
@@ -25,7 +25,7 @@ final class OllamaTest extends TestCase
     #[DataProvider('provideModelsWithToolCallingCapability')]
     public function testModelsWithToolCallingCapability(string $modelName)
     {
-        $model = new Ollama($modelName);
+        $model = Ollama::create($modelName);
 
         $this->assertTrue(
             $model->supports(Capability::TOOL_CALLING),
@@ -36,7 +36,7 @@ public function testModelsWithToolCallingCapability(string $modelName)
     #[DataProvider('provideModelsWithoutToolCallingCapability')]
     public function testModelsWithoutToolCallingCapability(string $modelName)
     {
-        $model = new Ollama($modelName);
+        $model = Ollama::create($modelName);
 
         $this->assertFalse(
             $model->supports(Capability::TOOL_CALLING),
@@ -47,7 +47,7 @@ public function testModelsWithoutToolCallingCapability(string $modelName)
     #[DataProvider('provideModelsWithMultipleInputCapabilities')]
     public function testModelsWithMultipleInputCapabilities(string $modelName)
     {
-        $model = new Ollama($modelName);
+        $model = Ollama::create($modelName);
 
         $this->assertTrue(
             $model->supports(Capability::INPUT_MULTIPLE),
diff --git a/src/platform/tests/Bridge/OpenAi/DallE/ModelClientTest.php b/src/platform/tests/Bridge/OpenAi/DallE/ModelClientTest.php
index d866c299..ca4999cf 100644
--- a/src/platform/tests/Bridge/OpenAi/DallE/ModelClientTest.php
+++ b/src/platform/tests/Bridge/OpenAi/DallE/ModelClientTest.php
@@ -61,7 +61,7 @@ public function testItIsSupportingTheCorrectModel()
     {
         $modelClient = new ModelClient(new MockHttpClient(), 'sk-api-key');
 
-        $this->assertTrue($modelClient->supports(new DallE()));
+        $this->assertTrue($modelClient->supports(DallE::create()));
     }
 
     public function testItIsExecutingTheCorrectRequest()
@@ -76,6 +76,6 @@ public function testItIsExecutingTheCorrectRequest()
         };
         $httpClient = new MockHttpClient([$resultCallback]);
         $modelClient = new ModelClient($httpClient, 'sk-api-key');
-        $modelClient->request(new DallE(), 'foo', ['n' => 1, 'response_format' => 'url']);
+        $modelClient->request(DallE::create(), 'foo', ['n' => 1, 'response_format' => 'url']);
     }
 }
diff --git a/src/platform/tests/Bridge/OpenAi/DallETest.php b/src/platform/tests/Bridge/OpenAi/DallETest.php
index 7448f0c4..7b90625e 100644
--- a/src/platform/tests/Bridge/OpenAi/DallETest.php
+++ b/src/platform/tests/Bridge/OpenAi/DallETest.php
@@ -22,7 +22,7 @@ final class DallETest extends TestCase
 {
     public function testItCreatesDallEWithDefaultSettings()
     {
-        $dallE = new DallE();
+        $dallE = DallE::create();
 
         $this->assertSame(DallE::DALL_E_2, $dallE->getName());
         $this->assertSame([], $dallE->getOptions());
@@ -30,7 +30,7 @@ public function testItCreatesDallEWithDefaultSettings()
 
     public function testItCreatesDallEWithCustomSettings()
     {
-        $dallE = new DallE(DallE::DALL_E_3, ['response_format' => 'base64', 'n' => 2]);
+        $dallE = DallE::create(DallE::DALL_E_3, ['response_format' => 'base64', 'n' => 2]);
 
         $this->assertSame(DallE::DALL_E_3, $dallE->getName());
         $this->assertSame(['response_format' => 'base64', 'n' => 2], $dallE->getOptions());
diff --git a/src/platform/tests/Bridge/OpenAi/Whisper/ModelClientTest.php b/src/platform/tests/Bridge/OpenAi/Whisper/ModelClientTest.php
index d34e73ec..2f37ae1c 100644
--- a/src/platform/tests/Bridge/OpenAi/Whisper/ModelClientTest.php
+++ b/src/platform/tests/Bridge/OpenAi/Whisper/ModelClientTest.php
@@ -27,7 +27,7 @@ final class ModelClientTest extends TestCase
     public function testItSupportsWhisperModel()
     {
         $client = new ModelClient(new MockHttpClient(), 'test-key');
-        $model = new Whisper();
+        $model = Whisper::create();
 
         $this->assertTrue($client->supports($model));
     }
@@ -44,7 +44,7 @@ function ($method, $url): MockResponse {
         ]);
 
         $client = new ModelClient($httpClient, 'test-key');
-        $model = new Whisper();
+        $model = Whisper::create();
         $payload = ['file' => 'audio-data'];
 
         $client->request($model, $payload);
@@ -64,7 +64,7 @@ function ($method, $url): MockResponse {
         ]);
 
         $client = new ModelClient($httpClient, 'test-key');
-        $model = new Whisper();
+        $model = Whisper::create();
         $payload = ['file' => 'audio-data'];
         $options = ['task' => Task::TRANSCRIPTION];
 
@@ -85,7 +85,7 @@ function ($method, $url): MockResponse {
         ]);
 
         $client = new ModelClient($httpClient, 'test-key');
-        $model = new Whisper();
+        $model = Whisper::create();
         $payload = ['file' => 'audio-data'];
         $options = ['task' => Task::TRANSLATION];
 
diff --git a/src/platform/tests/Contract/Normalizer/Message/MessageBagNormalizerTest.php b/src/platform/tests/Contract/Normalizer/Message/MessageBagNormalizerTest.php
index d9e8164a..a5ee7096 100644
--- a/src/platform/tests/Contract/Normalizer/Message/MessageBagNormalizerTest.php
+++ b/src/platform/tests/Contract/Normalizer/Message/MessageBagNormalizerTest.php
@@ -96,7 +96,7 @@ public function testNormalizeWithModel()
         $innerNormalizer = $this->createMock(NormalizerInterface::class);
         $innerNormalizer->expects($this->once())
             ->method('normalize')
-            ->with($messages, null, [Contract::CONTEXT_MODEL => new Gpt()])
+            ->with($messages, null, [Contract::CONTEXT_MODEL => Gpt::create()])
             ->willReturn([
                 ['role' => 'system', 'content' => 'You are a helpful assistant'],
                 ['role' => 'user', 'content' => 'Hello'],
@@ -113,7 +113,7 @@ public function testNormalizeWithModel()
         ];
 
         $this->assertSame($expected, $this->normalizer->normalize($messageBag, context: [
-            Contract::CONTEXT_MODEL => new Gpt(),
+            Contract::CONTEXT_MODEL => Gpt::create(),
         ]));
     }
 }
diff --git a/src/platform/tests/ContractTest.php b/src/platform/tests/ContractTest.php
index 111ee40c..4a18d290 100644
--- a/src/platform/tests/ContractTest.php
+++ b/src/platform/tests/ContractTest.php
@@ -83,7 +83,7 @@ public function testCreateRequestPayload(Model $model, array|string|object $inpu
     public static function providePayloadTestCases(): iterable
     {
         yield 'MessageBag with Gpt' => [
-            'model' => new Gpt(),
+            'model' => Gpt::create(),
             'input' => new MessageBag(
                 Message::forSystem('System message'),
                 Message::ofUser('User message'),
@@ -101,7 +101,7 @@ public static function providePayloadTestCases(): iterable
 
         $audio = Audio::fromFile(\dirname(__DIR__, 3).'/fixtures/audio.mp3');
         yield 'Audio within MessageBag with Gpt' => [
-            'model' => new Gpt(),
+            'model' => Gpt::create(),
             'input' => new MessageBag(Message::ofUser('What is this recording about?', $audio)),
             'expected' => [
                 'messages' => [
@@ -125,7 +125,7 @@ public static function providePayloadTestCases(): iterable
 
         $image = Image::fromFile(\dirname(__DIR__, 3).'/fixtures/image.jpg');
         yield 'Image within MessageBag with Gpt' => [
-            'model' => new Gpt(),
+            'model' => Gpt::create(),
             'input' => new MessageBag(
                 Message::forSystem('You are an image analyzer bot that helps identify the content of images.'),
                 Message::ofUser('Describe the image as a comedian would do it.', $image),
@@ -149,7 +149,7 @@ public static function providePayloadTestCases(): iterable
         ];
 
         yield 'ImageUrl within MessageBag with Gpt' => [
-            'model' => new Gpt(),
+            'model' => Gpt::create(),
             'input' => new MessageBag(
                 Message::forSystem('You are an image analyzer bot that helps identify the content of images.'),
                 Message::ofUser('Describe the image as a comedian would do it.', new ImageUrl('https://example.com/image.jpg')),
@@ -173,13 +173,13 @@ public static function providePayloadTestCases(): iterable
         ];
 
         yield 'Text Input with Embeddings' => [
-            'model' => new Embeddings(),
+            'model' => Embeddings::create(),
             'input' => 'This is a test input.',
             'expected' => 'This is a test input.',
         ];
 
         yield 'Longer Conversation with Gpt' => [
-            'model' => new Gpt(),
+            'model' => Gpt::create(),
             'input' => new MessageBag(
                 Message::forSystem('My amazing system prompt.'),
                 Message::ofAssistant('It is time to sleep.'),
@@ -223,7 +223,7 @@ public function jsonSerialize(): array
         };
 
         yield 'MessageBag with custom message from Gpt' => [
-            'model' => new Gpt(),
+            'model' => Gpt::create(),
             'input' => new MessageBag($customSerializableMessage),
             'expected' => [
                 'messages' => [
@@ -240,7 +240,7 @@ public function testExtendedContractHandlesWhisper()
 
         $audio = Audio::fromFile(\dirname(__DIR__, 3).'/fixtures/audio.mp3');
 
-        $actual = $contract->createRequestPayload(new Whisper(), $audio);
+        $actual = $contract->createRequestPayload(Whisper::create(), $audio);
 
         $this->assertArrayHasKey('model', $actual);
         $this->assertSame('whisper-1', $actual['model']);
diff --git a/src/store/tests/IndexerTest.php b/src/store/tests/IndexerTest.php
index e7865f9d..d9499102 100644
--- a/src/store/tests/IndexerTest.php
+++ b/src/store/tests/IndexerTest.php
@@ -49,7 +49,7 @@ public function testIndexSingleDocument()
     {
         $document = new TextDocument($id = Uuid::v4(), 'Test content');
         $vector = new Vector([0.1, 0.2, 0.3]);
-        $vectorizer = new Vectorizer(PlatformTestHandler::createPlatform(new VectorResult($vector)), new Embeddings());
+        $vectorizer = new Vectorizer(PlatformTestHandler::createPlatform(new VectorResult($vector)), Embeddings::create());
 
         $indexer = new Indexer($vectorizer, $store = new TestStore());
         $indexer->index($document);
@@ -64,7 +64,7 @@ public function testIndexEmptyDocumentList()
     {
         $logger = self::createMock(LoggerInterface::class);
         $logger->expects($this->once())->method('debug')->with('No documents to index');
-        $vectorizer = new Vectorizer(PlatformTestHandler::createPlatform(), new Embeddings());
+        $vectorizer = new Vectorizer(PlatformTestHandler::createPlatform(), Embeddings::create());
 
         $indexer = new Indexer($vectorizer, $store = new TestStore(), $logger);
         $indexer->index([]);
@@ -77,7 +77,7 @@ public function testIndexDocumentWithMetadata()
         $metadata = new Metadata(['key' => 'value']);
         $document = new TextDocument($id = Uuid::v4(), 'Test content', $metadata);
         $vector = new Vector([0.1, 0.2, 0.3]);
-        $vectorizer = new Vectorizer(PlatformTestHandler::createPlatform(new VectorResult($vector)), new Embeddings());
+        $vectorizer = new Vectorizer(PlatformTestHandler::createPlatform(new VectorResult($vector)), Embeddings::create());
 
         $indexer = new Indexer($vectorizer, $store = new TestStore());
         $indexer->index($document);