Outage in Anthropic
Elevated errors on Haiku 4.5
Resolved MajorIncident Report
Summary AI Generated
**Incident Summary** Anthropic experienced elevated errors on Claude Haiku 4.5 lasting approximately 3.6 hours, affecting claude.ai, the Anthropic console, and the API. The issue required two rounds of fixes before being fully resolved, with the first fix proving insufficient and a second intervention needed roughly 90 minutes later. The incident was ultimately resolved after monitoring confirmed stability.
We are currently investigating this issue.
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Latest Updates ( sorted recent to last )
RESOLVED
about 15 hours ago - at 07/21/2026 04:38PM
This incident has been resolved.
MONITORING
about 16 hours ago - at 07/21/2026 03:30PM
A fix has been implemented and we are monitoring the results.
IDENTIFIED
about 17 hours ago - at 07/21/2026 02:44PM
The issue has been identified and a fix is being implemented.
MONITORING
about 18 hours ago - at 07/21/2026 01:22PM
A fix has been implemented and we are monitoring the results.
IDENTIFIED
about 19 hours ago - at 07/21/2026 01:14PM
The issue has been identified and a fix is being implemented.
INVESTIGATING
about 19 hours ago - at 07/21/2026 01:04PM
We are currently investigating this issue.
Latest Anthropic outages
Service disruption on Claude services - about 14 hours ago
Elevated errors on several models - about 16 hours ago
Elevated errors across Fable 5 - about 21 hours ago
Elevated errors across models - about 22 hours ago
Elevated errors on Haiku 4.5 - 1 day ago
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