new start you mean opening the Cursor IDE or workspace ?
for me it happens even without reopening Cursor, in the middle of a 3hr coding session.
Where I can do this that you mentioned :
You can also set for each mode a specific model for now.
when you say mode you mean ask/agent ?
I double checked the UI and Cursor Settings and was unable to find.
Can you clarify and compare your cursor version ?
Version: 0.47.8
VSCode Version: 1.96.2
Commit: 82ef0f61c01d079d1b7e5ab04d88499d5af500e0
Date: 2025-03-18T06:55:51.040Z
Electron: 32.2.6
Chromium: 128.0.6613.186
Node.js: 20.18.1
V8: 12.8.374.38-electron.0
OS: Darwin arm64 24.3.0
on Mac Os Sequoia