Outage in Anthropic
Claude Sonnet 4.5 error spike
Resolved MajorIncident Report
Summary AI Generated
Claude Sonnet 4.5 experienced a major error spike affecting the Anthropic console, API, and claude.ai for 1.2 hours. The incident impacted users' ability to access and use Claude services across all platforms. A fix was implemented and the issue was resolved after monitoring confirmed the solution was effective.
We are currently investigating this issue.
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Latest Updates ( sorted recent to last )
RESOLVED
1 day ago - at 04/20/2026 07:25AM
This incident has been resolved.
MONITORING
1 day ago - at 04/20/2026 06:41AM
We are continuing to monitor for any further issues.
MONITORING
1 day ago - at 04/20/2026 06:38AM
A fix has been implemented and we are monitoring the results.
INVESTIGATING
1 day ago - at 04/20/2026 06:14AM
We are currently investigating this issue.
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