Outage in Claude
Elevated errors on Sonnet 5 and Haiku 4.5
Resolved MinorIncident Report
Summary AI Generated
**Incident Summary** On July 17, 2026, Claude experienced elevated error rates affecting the Sonnet 5 and Haiku 4.5 models across both claude.ai and the Anthropic API. The issue lasted approximately 5.6 hours, during which Anthropic identified the root cause and implemented a fix. The incident was fully resolved by 12:21 UTC.
We are currently investigating this issue.
Components affected
Claude claude.ai Claude api.anthropic.comLatest Updates ( sorted recent to last )
RESOLVED
about 24 hours ago - at 07/17/2026 12:21PM
This incident has been resolved.
IDENTIFIED
1 day ago - at 07/17/2026 07:10AM
The issue has been identified and a fix is being implemented.
MONITORING
1 day ago - at 07/17/2026 07:03AM
A fix has been implemented and we are monitoring the results.
INVESTIGATING
1 day ago - at 07/17/2026 06:47AM
We are currently investigating this issue.
Latest Claude outages
Elevated errors across Fable 5 - about 17 hours ago
Elevated error rates for Sonnet 5 - about 18 hours ago
Elevated errors for Claude Opus 4.8 - about 21 hours ago
Elevated errors for multiple models - 1 day ago
Enterprise SSO sign-in failures - 2 days ago
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