Outage in Claude
Elevated errors on Claude Haiku 4.5
Resolved MinorIncident Report
Summary AI Generated
Claude Haiku 4.5 experienced elevated error rates for 24 minutes, affecting both claude.ai and api.anthropic.com from 4:53-5:36 PT on April 28th. A fix was implemented and the incident was resolved after monitoring confirmed the error rates returned to normal levels.
We are currently investigating this issue.
Components affected
Claude claude.ai Claude api.anthropic.comLatest Updates ( sorted recent to last )
RESOLVED
about 18 hours ago - at 04/28/2026 12:45PM
The incident has now been resolved. The elevated error rate for Haiku 4.5 was between 4:53 PT / 11:53 UTC and 5:36 PT / 12:44 UTC.
MONITORING
about 18 hours ago - at 04/28/2026 12:38PM
A fix has been implemented and we are monitoring the results.
INVESTIGATING
about 18 hours ago - at 04/28/2026 12:24PM
We are currently investigating this issue.
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