AI outage calendar – Claude (Anthropic)

Every incident published on official AI status pages, archived permanently — even after vendors remove them. Pick a month, click a day to see what broke.

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October 2026

›This month

17 official incidents this month · 13 days with major outages · times in UTC

Mon

Tue

Wed

Thu

Fri

Sat

Sun

51 61 73 81 91 101 111 121 131

211 221 231 243 252

272 282

Major / criticalMinorOther / maintenanceSeen by our probesClick a day to see its incidents

Wed, Oct 28 2↑ Calendar

Elevated errors affecting the Google Calendar connector

Claude (Anthropic) · Details · 16:19–20:05 · impact: minor · lasted 3.8 h

Elevated errors affecting the Gmail connector

Claude (Anthropic) · Details · 03:59–05:48 · impact: minor · lasted 1.8 h

Tue, Oct 27 2↑ Calendar

Elevated errors for Claude Sonnet 5.5

Claude (Anthropic) · Details · 15:09–15:50 · impact: major · lasted 41 min

Elevated errors for Claude Sonnet 5.5

Claude (Anthropic) · Details · 09:14–09:56 · impact: major · lasted 42 min

Sun, Oct 25 2↑ Calendar

Elevated errors for Claude Fable 5.1

Claude (Anthropic) · Details · 08:17–08:49 · impact: major · lasted 32 min

Elevated errors for Claude Sonnet 5.5 and other models

Claude (Anthropic) · Details · 06:14–07:53 · impact: major · lasted 1.7 h

Sat, Oct 24 3↑ Calendar

Elevated errors for Claude Fable 5 and Claude Fable 5.1

Claude (Anthropic) · Details · 05:16–05:53 · impact: major · lasted 37 min

Elevated errors for Claude Opus 5.5

Claude (Anthropic) · Details · 00:31–00:37 · impact: major · lasted 6 min

Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5

Claude (Anthropic) · Details · 10-23 23:37–00:11 · impact: critical · lasted 34 min

Fri, Oct 23 1↑ Calendar

Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5

Claude (Anthropic) · Details · 23:37–10-24 00:11 · impact: critical · lasted 34 min

Thu, Oct 22 1↑ Calendar

Elevated errors affecting Connectors

Claude (Anthropic) · Details · 03:50–08:07 · impact: minor · lasted 4.3 h

Wed, Oct 21 1↑ Calendar

Degraded performance for Claude Fable 5

Claude (Anthropic) · Details · 19:49–20:29 · impact: minor · lasted 40 min

Tue, Oct 13 1↑ Calendar