[FEATURE]: Support for @ai-sdk/open-responses

[anmol098]

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

@ai-sdk/open-responses can be used to connect to newer models that support the OpenAI Responses API, because the OpenAI-compatible /completion endpoint does not support the newer Codex models.

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• [FEATURE]: Use Responses api for providers that support it #10601: [FEATURE]: Use Responses api for providers that support it - Requests to use responses API for providers that support it
• [FEATURE]: enable responses API in openai compatible provider #9628: [FEATURE]: enable responses API in openai compatible provider - Similar request for OpenAI compatible models to use responses API
• scaleway/gpt-oss-120b unable to call tools with chat/completions endpoint #7524: scaleway/gpt-oss-120b unable to call tools with chat/completions endpoint - Specific case where responses API is needed for tool calling
• [FEATURE]: /compact should be configurable to use OpenAI Responses API 'compaction' #5200: [FEATURE]: /compact should be configurable to use OpenAI Responses API 'compaction' - Related to responses API features

Feel free to ignore if none of these address your specific case.

[github-actions]

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