Some OpenAI flagship models only work with the newer `/v1/responses` endpoint - [gpt-5-codex](https://platform.openai.com/docs/models/gpt-5-codex) - [gpt-5.1-codex](https://platform.openai.com/docs/models/gpt-5.1-codex) - [gpt-5-pro](https://platform.openai.com/docs/models/gpt-5-pro) - [o3-pro](https://platform.openai.com/docs/models/o3-pro) - [gpt-oss-120b](https://platform.openai.com/docs/models/gpt-oss-120b) - [gpt-oss-20b](https://platform.openai.com/docs/models/gpt-oss-20b) For validation, we can test with Codex
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ibetitsmike commentedon Oct 14, 2025
Once done it would be worthwile to make sure this is supported (it's a major use case for this feature):
https://platform.openai.com/docs/models/gpt-5-codex
pawbana commentedon Feb 3, 2026
Closing as responses are supported after phase 1 tasks are done. Phase 2 tasks will be considered independently.
[-]Implement the OpenAI `/v1/responses`[/-][+]Implement the OpenAI `/v1/responses`[/+]