Suddenly, can't use any of the models

[Peter_Carter]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I’ve been using the models as usual (Agents/Max) today and all of a sudden I can’t use any of them. It keeps saying “Unauthorized User API key”. I’m a PRO user

Steps to Reproduce

Just type any prompts on the Cursor chat interface

Expected Behavior

Respond to the prompt

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.4.6
VSCode Version: 1.99.3
Commit: 8bdbd55db6885f3d79f73cdacca5fcedef93d360
Date: 2025-08-15T02:08:45.149Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.6.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, thanks for the report. Could you let me know which model you are using? Is your API key enabled? The error specifically points to API key usage. I just checked, and it works for me.