Outage recap · Anthropic

Claude outage — September 2, 2026

On September 2, 2026, Claude had a reported incident on Anthropic's official status page. Below is what was reported — impact, timing, and the AI services the same upstream outage could affect.

Elevated errors for Claude Sonnet 5

major

Started: Sep 2, 5:17 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.

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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Is Claude down right now? →Claude status history →

AIDownCheck is not affiliated with Anthropic. This recap summarizes incidents published on Anthropic's official status page.