resolved
This issue has been resolved. Impact occurred from 5:50pm PT / 00:50 UTC to 7:10pm PT / 02:10 UTC.
Elevated errors for multiple models
Official Claude incident record with affected components, status, timeline updates, and links back to relevant status checks.
Affected components
These are the official Claude components attached to this incident. Component data can help separate a web app issue from an API, Console, or Claude Code issue.
claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
Official timeline
Updates are shown from the official Claude status incident record.
monitoring
We have seen success rates return to normal across affected models, and are monitoring closely to ensure no further issues.
identified
We are continuing to work to resolve errors affecting some models. At this time, requests to Claude Fable 5 and 5.1 and Mythos 5 and 5.1 have returned to normal success rates. We are working to resolve remaining errors affecting Claude Opus 5, and will provide an additional update shortly.
identified
We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
investigating
We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.