microsoft/autogen · error · ValueError

model is required for AnthropicBedrockChatCompletionClient

Error message

model is required for  AnthropicBedrockChatCompletionClient

What it means

Error "model is required for AnthropicBedrockChatCompletionClient" thrown in microsoft/autogen.

Source

Thrown at python/packages/autogen-ext/src/autogen_ext/models/anthropic/_anthropic_client.py:1345

                    aws_region="<aws_region>",
                ),
            )

            result = await anthropic_client.create([UserMessage(content="What is the capital of France?", source="user")])  # type: ignore
            print(result)


        if __name__ == "__main__":
            asyncio.run(main())
    """

    component_type = "model"
    component_config_schema = AnthropicBedrockClientConfigurationConfigModel
    component_provider_override = "autogen_ext.models.anthropic.AnthropicBedrockChatCompletionClient"

    def __init__(self, **kwargs: Unpack[AnthropicBedrockClientConfiguration]):
        if "model" not in kwargs:
            raise ValueError("model is required for  AnthropicBedrockChatCompletionClient")

        self._raw_config: Dict[str, Any] = dict(kwargs).copy()
        copied_args = dict(kwargs).copy()

        model_info: Optional[ModelInfo] = None
        if "model_info" in kwargs:
            model_info = kwargs["model_info"]
            del copied_args["model_info"]

        bedrock_info: Optional[BedrockInfo] = None
        if "bedrock_info" in kwargs:
            bedrock_info = kwargs["bedrock_info"]

        if bedrock_info is None:
            raise ValueError("bedrock_info is required for AnthropicBedrockChatCompletionClient")

        # Handle bedrock_info
        aws_region = bedrock_info["aws_region"]

View on GitHub (pinned to 027ecf0a37)

Solutions

1. Pass the model parameter

Example fix

AnthropicBedrockChatCompletionClient(model='claude-...', bedrock_info=...)

When it happens

Trigger: Thrown at python/packages/autogen-ext/src/autogen_ext/models/anthropic/_anthropic_client.py:1345 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of microsoft/autogen@027ecf0a37 (2026-08-15). Data as JSON: /api/errors/cda1f8293af83f39. Report an issue: GitHub.