Anthropic incident
Elevated errors for Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5
Started
July 25, 2026 at 06:40 PM UTC
Duration
1h 4m
Resolved
July 25, 2026 at 07:44 PM UTC
Updates timeline
- Investigating
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.
- Identified
The issue has been identified and a fix is being implemented.
- Resolved
This incident has been resolved.
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