Provider
AnthropicIncident detail
Elevated errors for multiple models
Resolved incidentMajor3 affected services
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Timeline
Incident updates
Every update on the official status source, oldest to newest, exactly as it appeared there.
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.
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.
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.
Monitoring
We have seen success rates return to normal across affected models, and are monitoring closely to ensure no further issues.
Resolved
This issue has been resolved. Impact occurred from 5:50pm PT / 00:50 UTC to 7:10pm PT / 02:10 UTC.
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