Fallback Model Disabled

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Why do I receive the error:
“The suggested fallback model is disabled. Choose a different model to continue.”?

Using Grok 4.7 High. This call costs a lot of usage, and it just stopped and done nothing.

Steps to Reproduce

idk

Operating System

Windows 10/11

Version Information

Version: 3.22.7 (user setup)
VS Code Extension API: 1.128.0
Commit: 37076c6c3f9e253c0fa2305197e45befd13a2260
Date: 2026-09-24T05:01:24.589Z
Layout: Agent Window
Build Type: Stable
Release Track: Default
Electron: 42.10.0
Chromium: 148.0.7778.280
Node.js: 24.18.1
V8: 14.8.178.38-electron.0
xterm.js: 6.1.0-beta.291
OS: Windows_NT x64 10.0.22631

For AI issues: which model did you use?

Grok 4.7 High

Does this stop you from using Cursor

No - Cursor works, but with this issue

5

Hey @Ronnie_O, thanks for the report!

That chat was actually running on Claude Opus 5.5 (Max mode), not Grok 4.7 High. Claude and other third-party models draw from your “Other Models” usage, and that ran out partway through the task, so the request stopped.

When that happens, Cursor tries to switch the chat to Grok 4.6 automatically so the work can continue. You have Grok 4.6 turned off in your model settings, so Cursor couldn’t make that switch and showed “Fallback Model Disabled” instead. We know the message doesn’t explain the real reason well, and I’ve passed that on.

To keep going, any of these will work:

  1. Switch that chat to Grok 4.7 High (or Auto / Composer) in the model picker. These use your Cursor Models usage, which still has room.
  2. Turn Grok 4.6 back on in Cursor Settings > Models, so the automatic switch can go through next time.
  3. If you want to keep using Claude after the limit, enable on-demand usage under Spending on cursor.com/dashboard.

You can see how much of each pool is used under Usage on cursor.com/dashboard.