Rank, 14 days: 105 on the Claude Code sheet
15 people reported
All time, since Sep 22, including 9 thumbs-up on GitHub.
Code generation quality regresses with more errors
“the model quality has degraded back to level of opus 5 - not sure if you are doing this on purpose”
Is this your bug? What gets counted gets fixed. Pile on.
Paste this into your agent. It files your report, with your error and version.
I hit this bug: rapsheet.dev/sheets/claude-code/issues/3455/file Follow it to file my report. Show me the text before you send.
No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends
Is this your bug?
File my report- Where
- model output
- Versions
- 2.1.275 to 2.1.284
- Platforms
- Linux, macOS, Windows
- How bad
- Breaks a normal workflow. Some reports say it used to work.
Original reports6, newest first
- Model performance regression: Unexpected degradation in output quality#99986
- Model performance degradation: Claude 5.5 Opus quality regressed to Opus 5 level#99572
- Model performance degradation reported#97961
- Degraded Claude model performance: Increased error rate and missing critical details#97463
- Opus 5.5 performance degradation - model output quality significantly below expected baseline#96205
- Performance degradation and increased error rate in code generation#95983