OpenAI API Key not Working for Most OpenAI Models

[wzdx]

Describe the Bug

Hi,

I am trying to use my own OpenAI API key on Cursor. However, it seems to only work with GPT-4.1. For other models, including o3 and o4-mini, it shows: “Model temporarily unavailable due to unsupported Responses API event.”

I would really appreciate it if you could fix this soon!

Thanks!

Steps to Reproduce

Just add a valid OpenAI API key, and use o3 or o4-mini will reproduce it.

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.1.2
VSCode Version: 1.96.2
Commit: 87ea1604be1f602f173c5fb67582e647fcef6c40
Date: 2025-06-13T00:30:10.108Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.5.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, it seems like a temporary unavailability of models. Did it work for you before? If so, I don’t think we changed anything here, and it’s probably temporary. However, let me know if this issue doesn’t resolve after some time.

[wzdx]

It works now!