[BUG] Thinking and not coding for more than 10 minutes for simple tasks with oppus 4.6 - then freezes
Status Open
Reported on v2.1.34
Maintainer reply None cached
Activity 3 comments · opened Feb 6, 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?
Latest version of claude code with oppus 4.6 start thinking and never goes to coding phase. This happened a couple of times already since yesterday. It goes to the point of thinking for 20min and never coding and then claude code freezes and I have to kill the process . Switching to Sonnet makes it work fine
What Should Happen?
It should properly execute the tasks like in previous claude code versions with oppus 4.5
Error Messages/Logs
Steps to Reproduce
Ask claude code for a simple task
Claude Model
Opus
Is this a regression?
Yes, this worked in a previous version
Last Working Version
_No response_
Claude Code Version
2.1.34 (Claude Code)
Platform
Anthropic API
Operating System
Ubuntu/Debian Linux
Terminal/Shell
Other
Additional Information
_No response_
3 Comments
Found 3 possible duplicate issues:
This issue will be automatically closed as a duplicate in 3 days.
🤖 Generated with Claude Code
It used to be that you could read the thinking with
ctrl-o. You sometimes still can, other times it hides it anyway. But if you can read the thinking, the model probably went into a loop. You can break it by cancelling and saying something like "you seem to be stuck on this, mind telling me what you're thinking?" and it will break out of the loop.Omg thank you so much. This stucking forever has really frustrated me A LOT considering how much money I pay for this service. Now I at least know how to break out of the loop. It so embarrassing consider how proud they announced this model and it's just unusable most of the time.