Outage in Anthropic
Elevated errors on Claude Haiku 4.5
Resolved MinorIncident Report
Summary AI Generated
Anthropic experienced elevated errors with Claude Haiku 4.5 that affected both claude.ai and api.anthropic.com for 1.1 hours. The service team implemented a fix and monitored the results before confirming that error rates returned to baseline levels. This was a recurrence of previously resolved issues with the Haiku 4.5 model.
The earlier issues with Haiku 4.5 have reappeared.
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Latest Updates ( sorted recent to last )
RESOLVED
about 22 hours ago - at 03/04/2026 05:01PM
Errors have returned to the baseline as of 8:08 PT / 16:08 UTC.
MONITORING
about 23 hours ago - at 03/04/2026 04:13PM
A fix has been implemented and we are monitoring the results.
INVESTIGATING
about 23 hours ago - at 03/04/2026 03:58PM
The earlier issues with Haiku 4.5 have reappeared.
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