Current answer
Anthropic (Claude) experienced a major incident: Elevated errors for multiple models. ServiceAlert observed recovery on Sep 22, 2026.
Official Anthropic (Claude) status page Current Anthropic (Claude) status
ServiceAlert observed status change:
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Incident Lifecycle
Affected Components
claude.ai
Claude API (api.anthropic.com)
Claude Code
Claude Cowork
Incident Timeline
Monitoring
We have seen success rates return to normal across affected models, and are monitoring closely to ensure no further issues.
Sep 22, 2026 at 2:11 AM UTC
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.
Sep 22, 2026 at 1:35 AM UTC
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.
Sep 22, 2026 at 1:17 AM UTC
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.
Sep 22, 2026 at 12:57 AM UTC
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