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All agents  /  Claude Code  /  History  /  Oct 21, 2026

Claude Code outage on Oct 21, 2026: degraded performance for Claude Fable 5

Resolved after 40 min.

19:49 UTC to 20:29 UTC your time. Anthropic: “Degraded performance for Claude Fable 5.” 0 reports here during the incident.

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Reports during the incident

Every 15 minutes, 18:45 UTC to 21:30 UTC. Grey: normal. Red line: official incident.
18:45 UTC19:49 UTC20:29 UTC21:30 UTC

What people reported

0 reports during the incident

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Anthropic's updates

Quoted from status.claude.com

  1. 19:49 UTC

    Investigating

    We are investigating elevated errors on requests to Claude Fable 5. We will provide an update as soon as possible.

  2. 20:29 UTC

    Resolved

    The issue affecting other Claude models has been resolved.

Other Claude Code incidents

Nov 826 minDegraded performance for Claude Fable 5.1Details
Oct 283 h 46 minElevated errors affecting the Google Calendar connectorDetails
Oct 281 h 49 minElevated errors affecting the Gmail connectorDetails
All Claude Code incidents

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