feat: Add top_logprobs parameter to Responses API

[Vasuk12]

Fixes: #3552

What does this PR do?

The parameter allows users to request top log probabilities for each token when logprobs are enabled via the include parameter. The response will contain top_logprobs from the provider or None if not supported.

• Add top_logprobs parameter to create_openai_response in agents.py
• Pass top_logprobs through _create_streaming_response
• Add top_logprobs to StreamingResponseOrchestrator
• Pass top_logprobs to inference API (OpenAIChatCompletionRequestWithExtraBody)

Test Plan

[meta-cla]

Hi @Vasuk12!

Thank you for your pull request and welcome to our community.

Action Required

In order to merge any pull request (code, docs, etc.), we require contributors to sign our Contributor License Agreement, and we don't seem to have one on file for you.

Process

In order for us to review and merge your suggested changes, please sign at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need to sign the corporate CLA.

Once the CLA is signed, our tooling will perform checks and validations. Afterwards, the pull request will be tagged with CLA signed. The tagging process may take up to 1 hour after signing. Please give it that time before contacting us about it.

If you have received this in error or have any questions, please contact us at [email protected]. Thanks!

[meta-cla]

Thank you for signing our Contributor License Agreement. We can now accept your code for this (and any) Meta Open Source project. Thanks!

[iamemilio]

cc @leseb @cdoern could a maintainer please enable CI on this PR

[Vasuk12]

Hi, thanks for running the ci checks. I will commit with some additions to the yaml files to solve the failing integration tests.

[github-actions]

✱ Stainless preview builds

This PR will update the llama-stack-client SDKs with the following commit message.

feat: Add top_logprobs parameter to Responses API

Edit this comment to update it. It will appear in the SDK's changelogs.

⚡ llama-stack-client-python studio · conflict

There was a conflict between your custom code and your generated changes.
You don't need to resolve this conflict right now, but you will need to resolve it for your changes to be released to your users. Read more about why this happened here.

✅ llama-stack-client-node studio · code · diff

Your SDK built successfully.
generate ⚠️ → build ✅ → lint ✅ → test ✅

npm install https://pkg.stainless.com/s/llama-stack-client-node/50cd18a6e9ff5efac07d8d78db71214249967291/dist.tar.gz

✅ llama-stack-client-kotlin studio · code · diff

Your SDK built successfully.
generate ⚠️ → lint ✅ → test ❗

✅ llama-stack-client-go studio · code · diff

Your SDK built successfully.
generate ❗ → lint ❗ → test ❗

go get github.com/stainless-sdks/llama-stack-client-go@b24c62ea08cc21b524fbf61c5687e99a08d9217d

---

This comment is auto-generated by GitHub Actions and is automatically kept up to date as you push.
Last updated: 2025-12-21 08:14:21 UTC

[mergify]

This pull request has merge conflicts that must be resolved before it can be merged. @Vasuk12 please rebase it. https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

[Vasuk12]

Hey @iamemilio @leseb, I have implemented some changes and all tests have passed. Let me know if there are any other changes that might be reuired...