Degraded performance on claude.ai
minor- Started
- Sep 1, 12:02 PM EDT
- Resolved
- —
- Duration
- not marked resolved
As reported by Anthropic's official status page (status: investigating). We report the vendor's own words, never an inferred cause.
Outage recap · Anthropic
Claude outage — September 1, 2026
On September 1, 2026, Claude had 3 reported incidents on Anthropic's official status page. Below is what was reported — impact, timing, and the AI services the same upstream outage could affect.
Degraded performance on platform.claude.com and Claude for Microsoft Office 365
minor- Started
- Sep 1, 1:05 PM EDT
- Resolved
- —
- Duration
- not marked resolved
As reported by Anthropic's official status page (status: monitoring). We report the vendor's own words, never an inferred cause.
Delays in credit purchases
minor- Started
- Sep 1, 7:26 PM EDT
- Resolved
- —
- Duration
- not marked resolved
As reported by Anthropic's official status page (status: monitoring). We report the vendor's own words, never an inferred cause.
The AI cascade
Claude depends on Anthropic. When that upstream has an incident, it doesn't hit Claude alone — these AI tools share the dependency and can degrade at the same time:
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AIDownCheck is not affiliated with Anthropic. This recap summarizes incidents published on Anthropic's official status page.