For AI issues: which model did you use?
Model name (e.g., Sonnet 4, Tab…)
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Request ID: f9a7046a-279b-47e5-ab48-6e8dc12daba1
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Additional Information
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Does this stop you from using Cursor?
Yes - Cursor is unusable
Sometimes - I can sometimes use Cursor
No - Cursor works, but with this issue
The more details you provide, the easier it is for us to reproduce and fix the issue. Thanks!
Hi @zhaoxi2000 Nothing is broken on your install. The “Use Multiple Models” toggle was intentionally moved out of the local model picker earlier this year, and it now appears only when you start a new cloud agent.
There are two ways to run one prompt across several models today.
In the cloud, the toggle itself still exists. Start a new agent at https://cursor.com/agents, open the model picker, and turn on “Use Multiple Models”. It applies when you kick off a new agent rather than on a follow-up message, and it cannot be combined with long-running agents or push to branch.
Each model runs in its own Git worktree, so the attempts stay isolated from each other and from your main checkout, and you can compare them before applying one. Full details: Worktrees | Cursor Docs
Two conditions have to hold for /best-of-n to show up in the slash menu:
You need the classic editor layout, which you are already on. The command is not supported in the Agents Window.
Every folder open in the window has to be inside a Git repository. If you have opened an enclosing folder that is not itself a repo, or a multi-root workspace where one folder is not a repo, the command will not appear.