[MODEL] Opus 4.8 very bad, like cursor(auto) 1 year ago
Preflight Checklist
- [x] I have searched existing issues for similar behavior reports
- [x] This report does NOT contain sensitive information (API keys, passwords, etc.)
Type of Behavior Issue
Claude ignored my instructions or configuration
What You Asked Claude to Do
after the release of fable 5, I feel a strong degradation of opus 4.8. It shows poor results in agent-based task execution scenarios, does not do enough research before execution, and as a result, it does low-quality work that needs to be improved a lot with it.
I asked opus to make beautiful designs for me in html file format, he didn't make them beautiful, and when we were done with 40 options that I didn't like, I switched to Haiku and only he returned to the problem of clarifying the details and was able to figure out what needed to be done differently. Opus has become very bad for me
What Claude Actually Did
Use opus
Expected Behavior
Good work
Files Affected
Permission Mode
Accept Edits was ON (auto-accepting changes)
Can You Reproduce This?
Yes, every time with the same prompt
Steps to Reproduce
_No response_
Claude Model
Opus
Relevant Conversation
Impact
Critical - Data loss or corrupted project
Claude Code Version
Version 2.1.183
Platform
Anthropic API
Additional Context
_No response_