Resolved · lasted 7 h
Claude outage on October 5
Reports for Claude jumped to 152 an hour and stayed high for 7 h.
- Started
- 1:00 PM
- October 5, 2026 · UTC
- Back to normal
- 8:00 PM
- 7 h later
- Peak
- 152/hr
- 5× normal
- Anthropic’s incident
- 16 min
- Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
Reports during the outage
11:00 AM9:50 PM UTC
What Anthropic said
status.claude.comResolved1:05 – 1:21 PM · 16 min
Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
- Resolved · 1:21 PM
The issue affecting Claude Mythos 5.1 and Claude Fable 5.1 has been resolved. Impact occurred from 05:40 PT / 12:40 UTC to 06:10 PT / 13:10 UTC.
- Investigating · 1:05 PM
We are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
Anthropic posted its first update 6 min after reports started rising.
Is Claude down right now?
Live status, today’s reports and other past outages.