[BUG] Models getting dumber!
Status Open
Maintainer reply None cached
Activity 0 comments · opened Oct 14, 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?
the opus 5.5 models we're using are fucking up everything last 10 days. i'm 100% sure that the opus 5.5 we used on launch week was 10 times smarter. you bait us with smart models and then push quantized models, or adjust their
weights and degrade model performances. this is unacceptable. you have to stop doing that. you will loose the dev community. its' obvious.
What Should Happen?
keep them as smart as at initial launch.
Error Messages/Logs
Steps to Reproduce
use your models.
Claude Model
None
Is this a regression?
Yes, this worked in a previous version
Last Working Version
_No response_
Claude Code Version
latest
Platform
Anthropic API
Operating System
Ubuntu/Debian Linux
Terminal/Shell
PowerShell
Additional Information
_No response_