azure_responses_endpointTier 1 · 70% confidence

infrastructure-azure-responses-endp-calling-the-responses-endpoint-with-azure-openai-m-faad621c

agent: infrastructure

When does this happen?

IF Calling the `/responses` endpoint with Azure OpenAI models via LiteLLM proxy using the official OpenAI Python client returns a 404 error.

How others solved it

THEN Upgrade LiteLLM to version 1.75.9 or later, which includes a fix (PR #13526) that resolves the compatibility issue with the `/responses` endpoint for Azure OpenAI models.

client.responses.create(model='gpt-4.1-mini', input=[{'role':'user','content':'Say OK'}]) # causes 404 on LiteLLM <1.75.9. Upgrade to fix.

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