fix: convert litellm response with reasoning content to openai message #1098
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1. Description
This PR fixes an issue where reasoning content from models accessed via LiteLLM was not being correctly parsed into the
ChatCompletionMessageformat. This was particularly noticeable when using reasoning models.2. Context
I am using the
openai-agents-pythonlibrary in my project, and it has been incredibly helpful. Thank you for building such a great tool!My setup uses
litellmto interface withgemini-2.5-pro. I noticed that while the agent could receive a response, the reasoning(thinking) from the Gemini model was lost during the conversion process from the LiteLLM response format to the OpenAIChatCompletionMessageobject.I saw that PR #871 made progress on a similar issue, but it seems the specific response structure from LiteLLM still requires a small adaptation. This fix adds the necessary logic to ensure that these responses are handled.
Relates to: #871
3. Key Changes
LitellmConverter.convert_message_to_openai: addreasoing_contentConverter.items_to_messages: just pass the reasoning item