[BUG] switch model itself
Status Fixed / completed
Maintainer reply None cached
Activity 5 comments · opened Feb 8, 2026 · closed Mar 8, 2026
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
When useing Claude Code, it switch to Opus 4.6 by itself
What Should Happen?
It should not switch the model. I want to decide, which model should be used.
Error Messages/Logs
noneSteps to Reproduce
Set Sonnet as model. Switch from one Chat to another an back again. Then Opus is selected
Claude Model
None
Is this a regression?
I don't know
Last Working Version
Version 1.1.2321 (495628)
Claude Code Version
1.1.2321
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
Windows Terminal
Additional Information
_No response_
5 Comments
Found 3 possible duplicate issues:
This issue will be automatically closed as a duplicate in 3 days.
🤖 Generated with Claude Code
Don't close this...
It's really annoying. There are a lot of triggers, which switch to opus 4.6 in claude code. Remove them please or make them optinal in the setting.
push, please fix asap.
The idea of using cheaper models for less complex tasks is great. This should be done automatically. However switching from Sonnet/Haiku to Opus without user approval is inacceptable.
My suggestion would be two flags that can be set:
CLAUDE_AUTO_MODEL_DOWNGRADE (default: true)
CLAUDE_AUTO_MODEL_UPGRADE (default: false)
For me it is fixed and did not happen again.
This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.