GPT-5.5 BYOK not working

Support Bug Reports
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15

Same thing here.

  • Which model are you selecting gpt-5.5 or something else?

    • gpt-5.5

  • Are you using Override OpenAI Base URL with a custom endpoint, or another BYOK setup?

    • Yes, overriding Base URL with custom endpoint

  • What backend is behind the base URL self-hosted, LiteLLM, OpenRouter, Azure?

    • Self-hosted

  • Does the request reach your backend do you see it in access logs, or is Cursor not sending it?

    • It doesn’t reach my backend

  • Your Cursor version and OS.

    • MacOS, Cursor 3.3.30