Outage in Claude
Elevated errors for Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5
Resolved MajorIncident Report
Summary AI Generated
Claude experienced elevated error rates affecting requests to Claude Mythos 5, Claude Fable 5, and Claude Haiku 4.5 across both claude.ai and the API. The issue was identified shortly after it began and a fix was implemented. The incident lasted approximately 1.1 hours before being fully resolved.
We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Haiku 4.5. We will provide an update as soon as possible.
Components affected
Claude claude.ai Claude api.anthropic.comLatest Updates ( sorted recent to last )
RESOLVED
1 day ago - at 07/25/2026 07:44PM
This incident has been resolved.
IDENTIFIED
1 day ago - at 07/25/2026 06:44PM
The issue has been identified and a fix is being implemented.
INVESTIGATING
1 day ago - at 07/25/2026 06:40PM
We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Haiku 4.5. We will provide an update as soon as possible.
Latest Claude outages
Elevated errors for Opus 5 - about 18 hours ago
Elevated error rate on Opus 4.8 - 3 days ago
Elevated errors on Haiku 4.5 - 4 days ago
Service disruption on Claude Services - 4 days ago
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