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The Anthropic outage of September 8, 2026, as measured from 10 regions

Multi-region outage, 2h 33m long, from Sep 8, 2026, 8:31 PM UTC to Sep 8, 2026, 11:04 PM UTC.

Region-by-region timeline

When each monitored region started failing and when it recovered, per RealUptime's own probes. A region not listed here never failed during this incident.

Australia52 min
Failing from Sep 8, 2026, 10:12 PM UTC, recovered Sep 8, 2026, 11:04 PM UTC
South America1h 32m
Failing from Sep 8, 2026, 8:31 PM UTC, recovered Sep 8, 2026, 10:03 PM UTC

How this was measured

This record comes only from RealUptime's own scheduled probes against Anthropic's public, unauthenticated endpoints, run from 10 named regions. It is never built from user reports or from Anthropic's own status page, and it does not change once this incident closes: this page is the permanent record, not a live view.

See Anthropic's full evidence record or read the methodology.