fix: correct base64 data handling in image content conversion #3867 (#3868)

tarsyang · web-flow · commit 758fd13ee0b8 · 2025-11-10T22:59:29.000-08:00
diff --git a/livekit-agents/livekit/agents/llm/_provider_format/anthropic.py b/livekit-agents/livekit/agents/llm/_provider_format/anthropic.py
@@ -104,7 +104,7 @@ def _to_image_content(image: llm.ImageContent) -> dict[str, Any]:
         "type": "image",
         "source": {
             "type": "base64",
-            "data": f"data:{img.mime_type};base64,{b64_data}",
+            "data": b64_data,
             "media_type": img.mime_type,
         },
     }

Original file line number	Diff line number	Diff line change
`@@ -104,7 +104,7 @@ def _to_image_content(image: llm.ImageContent) -> dict[str, Any]:`
`104`	`104`	`"type": "image",`
`105`	`105`	`"source": {`
`106`	`106`	`"type": "base64",`
`107`		`- "data": f"data:{img.mime_type};base64,{b64_data}",`
	`107`	`+ "data": b64_data,`
`108`	`108`	`"media_type": img.mime_type,`
`109`	`109`	`},`
`110`	`110`	`}`