Unknown model ID: claude-opus-4-7-thinking-high

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

It shows this “Unknown model ID: claude-opus-4-7-thinking-high” when I try to use Opus 4.7 High.

Steps to Reproduce

Select the new Opus 4.7 High model and try sending a message.

Screenshots / Screen Recordings

SCR-20260421-kfpe.png
SCR-20260421-kfpe.png1156×320 22.6 KB

Operating System

MacOS

Version Information

Version: 3.1.17
VSCode Version: 1.105.1
Commit: fce1e9ab7844f9ea35793da01e634aa7e50bce90
Date: 2026-04-19T19:33:58.189Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 24.6.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

5

Hey, this is a known bug on our side. BadModelName happens before the request even gets sent to Anthropic. We’re tracking the issue, but I can’t share an exact ETA for a fix yet.

As a workaround, switch to Auto mode or pick a different model, like Claude Sonnet or the regular Opus without -thinking-high. Those resolve through a different path and work fine.

If there’s an update on the fix, I’ll reply in the thread.

7

It’s working now. Literally 2 mins after I posted this. Cheers.

8

I’m now getting it with gpt-5.4-high

9

This is accompanied for me with all of the thinking models disappearing from cursor settings - models. Now it just shows regular, no thinking options at all.