Claude outage on October 24, 2026: what happened and how long it lasted

Timeline (UTC)

1. 23:37OfficialOfficial incident posted: Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
2. 23:38MeasuredModelBank probes detect an outage
3. 00:11OfficialOfficially resolved: Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
4. 00:12MeasuredProbes back to normal (lasted 34 min)
5. 00:31OfficialOfficial incident posted: Elevated errors for Claude Opus 5.5
6. 00:32MeasuredModelBank probes detect degraded performance
7. 00:37OfficialOfficially resolved: Elevated errors for Claude Opus 5.5
8. 00:38MeasuredProbes back to normal (lasted 6 min)
9. 05:16OfficialOfficial incident posted: Elevated errors for Claude Fable 5 and Claude Fable 5.1
10. 05:18MeasuredModelBank probes detect degraded performance
11. 05:42MeasuredProbes back to normal (lasted 24 min)
12. 05:53OfficialOfficially resolved: Elevated errors for Claude Fable 5 and Claude Fable 5.1

Hourly measurements (UTC)

Also affected that day: Grok · Lovable.dev