Outage in Anthropic
Elevated errors for Claude Sonnet 5
Resolved MajorIncident Report
Summary AI Generated
Claude Sonnet 5 experienced elevated error rates on September 2, 2026, affecting both claude.ai and the Anthropic API for approximately 14 minutes (2:05–2:19 PM PT). The incident was detected and investigated promptly, with full resolution confirmed by 2:44 PM PT.
We are investigating elevated errors on requests to Claude Sonnet 5. We will provide an update as soon as possible.
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Latest Updates ( sorted recent to last )
RESOLVED
3 days ago - at 09/02/2026 09:44PM
The issue affecting Claude Sonnet 5 has been resolved. Impact occurred from 2:05pm PT / 21:05 UTC to 2:19pm PT / 21:19 UTC.
INVESTIGATING
3 days ago - at 09/02/2026 09:17PM
We are investigating elevated errors on requests to Claude Sonnet 5. We will provide an update as soon as possible.
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