Explorer agent using Fast instead of normal ($$$)

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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

When doing big tasks since the grok or gpt5.6 release, the explorer agent is using the Composer Fast variant even though the non-fast variant is selected, costing much more token than intended.

Steps to Reproduce

  • select sol 5.6 extra high
  • do a big task that requires explorer sub-agents
  • see the explorer showing the fast version (also in the usage dashboard confirmed)

Expected Behavior

The exact model config chosen in the options menu for the explorer should be used.

Screenshots / Screen Recordings

Screenshot 2026-07-10 101558.png
Screenshot 2026-07-10 101558.png1084×665 27.3 KB

Operating System

Windows 10/11

Version Information

Version: 3.10.20 (user setup)
VS Code Extension API: 1.125.0
Commit: 23b9fb205fe595ea2be29da7214e19762d037fc0
Date: 2026-07-07T07:03:33.071Z
Layout: IDE
Build Type: Stable
Release Track: Default
Electron: 40.10.3
Chromium: 144.0.7559.236
Node.js: 24.15.0
V8: 14.4.258.32-electron.0
xterm.js: 6.1.0-beta.256
OS: Windows_NT x64 10.0.26200

For AI issues: which model did you use?

sol 5.6 extra high
explorer is set to composer 2.5 (NOT FAST)

Does this stop you from using Cursor

No - Cursor works, but with this issue

7

Hi @alix Thank you for raising this and providing the clear screenshot, we’ve got a bug report raised for this and we will keep you updated on the status of it. Thank you!