Outage in Anthropic
Elevated errors for Claude Fable 5.1
Resolved MajorIncident Report
Summary AI Generated
Claude Fable 5.1 experienced elevated error rates for approximately 21 minutes on October 25, 2026, affecting both claude.ai and api.anthropic.com. The cause was identified and a fix was deployed, with the service returning to normal operation by 01:29 PT.
We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.
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Latest Updates ( sorted recent to last )
RESOLVED
5 days ago - at 10/25/2026 08:49AM
The issue affecting Claude services has been resolved. Impact occurred from 01:08 PT / 08:08 UTC to 01:29 PT / 08:29 UTC.
MONITORING
5 days ago - at 10/25/2026 08:30AM
A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.
IDENTIFIED
5 days ago - at 10/25/2026 08:17AM
We have identified the cause of elevated errors on requests to Claude Fable 5.1 and are working on a fix. We will provide an update as soon as possible.
INVESTIGATING
5 days ago - at 10/25/2026 08:17AM
We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.
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