chatgpt-4o-latest

​ Chat / Responses : Compatibilité entre protocoles

• New Feature: Chat → Responses Compatibility This release introduces Chat → Responses compatibility, allowing the Chat Completions API to invoke OpenAI models that support the Responses protocol only, including gpt-5.2-codex, gpt-5.1-codex-max, and gpt-5.2-pro. If you want to force the AIHubmix Chat API to route requests through the Responses protocol, add the following header to your request: X-Use-Responses-Enabled: true When a model supports both Chat and Responses protocols, setting this header will force the request to use the Responses API. Please note that the Responses protocol does not currently support audio input or output, so plan usage accordingly.

• Model Deprecation Notice: OpenAI will deprecate chatgpt-4o-latest on February 17, 2026. After the deprecation, we will automatically remap chatgpt-4o-latest to gpt-4o-2024-11-20.

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Also published on docs.aihubmix.com