Resolved · lasted 11 h
Claude outage on September 1
Reports for Claude jumped to 709 an hour and stayed high for 11 h.
- Started
- 12:00 PM
- September 1, 2026 · UTC
- Back to normal
- 11:00 PM
- 11 h later
- Peak
- 709/hr
- 22× normal
- Anthropic’s incident
- 20 min
- Degraded performance on Claude for Microsoft Office 365
Reports during the outage
10:00 AM12:50 AM UTC
What Anthropic said
status.claude.comResolved4:02 – 4:22 PM · 20 min
Degraded performance on Claude for Microsoft Office 365
- Resolved · 4:22 PM
This issue has been resolved.
- Investigating · 4:02 PM
We are investigating elevated errors affecting Claude for Microsoft Office 365. We will provide an update as soon as possible.
Anthropic posted its first update 4 h 03 min after reports started rising.
What people said
- armando9:29 PM
no jala
1 comments during the outage
Is Claude down right now?
Live status, today’s reports and other past outages.