6 people reported
All time, since Sep 22, including 5 thumbs-up on GitHub.
Opus 5.5 rejected on stable
“Opus 5.5 requests should succeed in the current stable release of Claude Code.”
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/3293/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
Opus 5.5 requests fail with version-too-old error on stable release. Selecting the model with /model returns a 400 saying a newer version is required, though the stable release is installed and up to date.
Is this your bug?
File my report- Where
- Model selection
- Error text
API error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"Claude Code 2.1.275 does not support this model; version 2.1.280 or newer is required. Run 'claude update', or update the Claude desktop app, then try again.","details":{"error_code":"claude_code_version_too_old"}},"request_id":"req_011CfK2o3XeCrKAFyfBPTJHd"}- Versions
- 2.1.275
- Platforms
- macOS
- How bad
- Breaks a normal workflow.
Not quite your bug?
- No 1M Opus in Desktop2 people
Original reports1, newest first
- Opus 5.5 requires unstable release of Claude Code#96130