Resolved · lasted 2 h
Claude outage on October 23
Reports for Claude jumped to 325 an hour and stayed high for 2 h.
- Started
- 11:00 PM
- October 23, 2026 · UTC
- Back to normal
- 1:00 AM
- 2 h later
- Peak
- 325/hr
- 10× normal
- Anthropic’s incident
- 34 min
- Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
Reports during the outage
What Anthropic said
status.claude.comElevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
- Resolved · 12:11 AM
The issue affecting Claude models has been resolved. Impact occurred from 16:28 PT / 23:28 UTC on October 23 to 16:59 PT / 23:59 UTC on October 23.
- Monitoring · 11:54 PM
We are seeing success rates return to normal for all affected models, and are continuing to monitor to ensure no further issues.
- Identified · 11:39 PM
We have identified the cause of elevated errors on requests to Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5, as well as fast mode requests to Opus 5.5 and are working on a fix. We will provide an update as soon as possible.
- Investigating · 11:37 PM
We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.
Anthropic posted its first update 38 min after reports started rising.
What people said
- fLandshut, DE · 11:36 PM
down lol
- mCochabamba, BO · 11:49 PM
No carga
2 comments during the outage
Is Claude down right now?
Live status, today’s reports and other past outages.