Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
I was using ask mode with a override OpenAI Base URL and my own API Key (No matter what model I used), but still got a message saying “Agent and edit rely on custom models that require a paid subscription. Please upgrade to a paid subscription or disable API Keys". It worked well just a few weeks ago. Why is this happening? Thank you.
Steps to Reproduce
Open Cursor’s agent chat tab, switch to ask mode and a custom model (with a override OpenAI Base URL and the corresponding API Key. Any model would get the same result), type into some simple questions or greetings and would only get error message requiring pro subscription.
Expected Behavior
The same procedure used to get normal answer from the LLM and would never require pro subscription.
Screenshots / Screen Recordings
Operating System
Windows 10/11
Version Information
Version: 2.4.23 (user setup)
VSCode Version: 1.105.1
Commit: 379934e04d2b3290cf7aefa14560f942e4212920
Date: 2026-01-29T21:24:23.350Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Windows_NT x64 10.0.26100
Additional Information
Error messages in dev mode:
workbench.desktop.main.js:34040 [composer] Error in AI response _je: Cursor Subscription Required Agent and Edit rely on custom models that require a paid subscription. Please upgrade to a paid subscription or disable API keys.
at kmf (workbench.desktop.main.js:9095:38083)
at Cmf (workbench.desktop.main.js:9095:37240)
at $mf (workbench.desktop.main.js:9096:4395)
at ova.run (workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (workbench.desktop.main.js:34193:57047)
at async Wpc.streamFromAgentBackend (workbench.desktop.main.js:34242:7695)
at async Wpc.getAgentStreamResponse (workbench.desktop.main.js:34242:8436)
at async FTe.submitChatMaybeAbortCurrent (workbench.desktop.main.js:9170:14575)
at async Object.$i [as onSubmit] (workbench.desktop.main.js:32991:3808)
at async workbench.desktop.main.js:32965:60145
Caused by: ConnectError: [resource_exhausted] Error
at uKd.$endAiConnectTransportReportError (workbench.desktop.main.js:11431:32845)
at w0t._doInvokeHandler (workbench.desktop.main.js:33981:23171)
at w0t._invokeHandler (workbench.desktop.main.js:33981:22913)
at w0t._receiveRequest (workbench.desktop.main.js:33981:21545)
at w0t._receiveOneMessage (workbench.desktop.main.js:33981:20362)
at lin.value (workbench.desktop.main.js:33981:18389)
at Oe._deliver (workbench.desktop.main.js:49:2962)
at Oe.fire (workbench.desktop.main.js:49:3283)
at R3t.fire (workbench.desktop.main.js:11415:12156)
at MessagePort. (workbench.desktop.main.js:36042:18408)
Does this stop you from using Cursor
Yes - Cursor is unusable