The Responses API exists only on native OpenAI. When the openai provider is pointed at a custom base_url (a proxy, gateway, or local server that speaks only Chat Completions), keep the Responses API off so the call does not fail.
The Responses API exists only on native OpenAI. When the openai provider is pointed at a custom base_url (a proxy, gateway, or local server that speaks only Chat Completions), keep the Responses API off so the call does not fail.