microsoft/autogen · error · ValueError

Failed to generate embeddings with Azure OpenAI: {str(e)}

Error message

Failed to generate embeddings with Azure OpenAI: {str(e)}

What it means

Error "Failed to generate embeddings with Azure OpenAI: {str(e)}" thrown in microsoft/autogen.

Source

Thrown at python/packages/autogen-ext/src/autogen_ext/tools/azure/_ai_search.py:191

                azure_client = AsyncAzureOpenAI(api_key=api_key, api_version=api_version, azure_endpoint=endpoint)
            else:

                def get_token() -> str:
                    credential = DefaultAzureCredential()
                    token = credential.get_token("https://cognitiveservices.azure.com/.default")
                    if not token or not token.token:
                        raise ValueError("Failed to acquire token using DefaultAzureCredential for Azure OpenAI.")
                    return token.token

                azure_client = AsyncAzureOpenAI(
                    azure_ad_token_provider=get_token, api_version=api_version, azure_endpoint=endpoint
                )

            try:
                response = await azure_client.embeddings.create(model=embedding_model, input=query)
                return response.data[0].embedding
            except Exception as e:
                raise ValueError(f"Failed to generate embeddings with Azure OpenAI: {str(e)}") from e

        elif embedding_provider.lower() == "openai":
            try:
                from openai import AsyncOpenAI
            except ImportError:
                raise ImportError(
                    "OpenAI SDK is required for client-side embedding generation. "
                    "Please install it with: uv add openai"
                ) from None

            api_key = getattr(search_config, "openai_api_key", None)
            openai_client = AsyncOpenAI(api_key=api_key)

            try:
                response = await openai_client.embeddings.create(model=embedding_model, input=query)
                return response.data[0].embedding
            except Exception as e:
                raise ValueError(f"Failed to generate embeddings with OpenAI: {str(e)}") from e

View on GitHub (pinned to 027ecf0a37)

Solutions

1. Check deployment name, endpoint, and credentials

Example fix

Verify the embedding deployment exists and the key/endpoint are correct

When it happens

Trigger: Thrown at python/packages/autogen-ext/src/autogen_ext/tools/azure/_ai_search.py:191 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/261afeafc1f6d31c. Report an issue: GitHub.