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.

‹

August 2026

›This month

25 official incidents this month · 8 days with major outages · times in UTC

Mon

Tue

Wed

Thu

Fri

Sat

Sun

32 43 52

121 131 144 151 161 171 181 191 202

243

281

312

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

Mon, Aug 31 2↑ Calendar

Degraded performance on claude.ai and Claude Code

Claude (Anthropic) · Details · 19:21–20:36 · impact: minor · lasted 1.2 h

Degraded performance on claude.ai

Claude (Anthropic) · Details · 17:23–17:52 · impact: minor · lasted 29 min

Fri, Aug 28 1↑ Calendar

Elevated errors on Claude Code and Claude Cowork

Claude (Anthropic) · Details · 17:22–20:21 · impact: major · lasted 3 h

Mon, Aug 24 3↑ Calendar

Issues logging into Claude.ai

Claude (Anthropic) · Details · 20:11–20:26 · impact: minor · lasted 15 min

Errors logging into Claude.ai

Claude (Anthropic) · Details · 17:12–17:16 · impact: minor · lasted 3 min

Elevated errors for multiple models

Claude (Anthropic) · Details · 05:06–08:30 · impact: major · lasted 3.4 h

Thu, Aug 20 2↑ Calendar

Elevated errors on requests to multiple models

Claude (Anthropic) · Details · 19:16–19:42 · impact: major · lasted 26 min

Elevated errors on Google connectors

Claude (Anthropic) · Details · 18:32–19:01 · impact: minor · lasted 29 min

Wed, Aug 19 1↑ Calendar

Degraded performance for Claude Opus 5 and Claude Haiku 4.5

Claude (Anthropic) · Details · 09:42–11:02 · impact: minor · lasted 1.3 h

Tue, Aug 18 1↑ Calendar

Degraded performance for multiple models

Claude (Anthropic) · Details · 16:20–19:01 · impact: minor · lasted 2.7 h

Mon, Aug 17 1↑ Calendar

Degraded performance for Claude Opus 5, Claude Sonnet 5

Claude (Anthropic) · Details · 13:56–15:29 · impact: minor · lasted 1.5 h

Sun, Aug 16 1↑ Calendar

Service disruption on Claude services

Claude (Anthropic) · Details · 21:58–22:34 · impact: critical · lasted 36 min

Sat, Aug 15 1↑ Calendar

Elevated errors for Claude Fable 5

Claude (Anthropic) · Details · 08-14 23:57–00:27 · impact: major · lasted 30 min

Fri, Aug 14 4↑ Calendar

Elevated errors for Claude Fable 5

Claude (Anthropic) · Details · 23:57–08-15 00:27 · impact: major · lasted 30 min

Service disruption on Claude services

Claude (Anthropic) · Details · 20:30–21:58 · impact: major · lasted 1.5 h

Issues reaching status.claude.com

Claude (Anthropic) · Details · 07:58–10:53 · impact: none · lasted 2.9 h

Service disruption on Claude Code on the web and related services

Claude (Anthropic) · Details · 00:36–00:51 · impact: minor · lasted 15 min

Thu, Aug 13 1↑ Calendar

Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5

Claude (Anthropic) · Details · 14:33–16:08 · impact: major · lasted 1.6 h

Wed, Aug 12 1↑ Calendar

Degraded performance for multiple models

Claude (Anthropic) · Details · 13:50–18:07 · impact: minor · lasted 4.3 h

Wed, Aug 5 2↑ Calendar

Degraded performance for Claude Opus 5

Claude (Anthropic) · Details · 13:51–14:34 · impact: minor · lasted 43 min

Degraded performance of multiple models

Claude (Anthropic) · Details · 07:05–14:14 · impact: minor · lasted 7.1 h

Tue, Aug 4 3↑ Calendar

Elevated errors across many models

Claude (Anthropic) · Details · 20:48–21:59 · impact: major · lasted 1.2 h

Elevated errors on Claude Sonnet 5

Claude (Anthropic) · Details · 11:27–11:52 · impact: minor · lasted 25 min

Elevated errors on Claude Sonnet 5

Claude (Anthropic) · Details · 06:16–06:55 · impact: minor · lasted 39 min

Mon, Aug 3 2↑ Calendar

Degraded performance on Claude Sonnet 5

Claude (Anthropic) · Details · 15:13–15:29 · impact: minor · lasted 15 min

Error rates across multiple models

Claude (Anthropic) · Details · 12:52–14:17 · impact: minor · lasted 1.4 h