Outage in Anthropic
Elevated errors on Claude Sonnet 4.5
Resolved MinorIncident Report
Summary AI Generated
Anthropic experienced elevated error rates on Claude Sonnet 4.5 for 17 minutes, affecting both claude.ai and api.anthropic.com services. The issue was identified and a fix was implemented, with error rates returning to baseline levels by 03:26 PT.
We are currently investigating this issue.
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Latest Updates ( sorted recent to last )
RESOLVED
about 1 month ago - at 02/23/2026 11:36AM
As of 03:26 PT / 11:26 UTC the error rate has now reduced to the baseline.
IDENTIFIED
about 1 month ago - at 02/23/2026 11:29AM
The issue has been identified and a fix is being implemented.
INVESTIGATING
about 1 month ago - at 02/23/2026 11:21AM
We are currently investigating this issue.
Latest Anthropic outages
Elevated errors on requests to Claude Sonnet 4.6 - about 13 hours ago
Elevated errors on requests to Claude Opus 4.6 - 3 days ago
Elevated errors and latency on Claude Haiku 4.5 - 3 days ago
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