AI outage & incident history – Claude (Anthropic)

Every incident published on official AI status pages, archived permanently — even after vendors remove them.

Elevated errors for multiple models

Claude (Anthropic) · 2026-09-22 00:57 UTC · impact: major · lasted 1.6 h

Issues with Google Play subscriptions

Claude (Anthropic) · 2026-09-16 16:18 UTC · impact: none · lasted 33 min

Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1

Claude (Anthropic) · 2026-09-15 09:48 UTC · impact: major · lasted 1.4 h

Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1

Claude (Anthropic) · 2026-09-11 14:19 UTC · impact: major · lasted 17 min

Elevated latency on the Claude API for some users

Claude (Anthropic) · 2026-09-10 21:43 UTC · impact: minor · lasted 1.7 h

Degraded functionality for Claude Cowork on Windows

Claude (Anthropic) · 2026-09-10 15:54 UTC · impact: major · lasted 4.1 d

Elevated errors for multiple models

Claude (Anthropic) · 2026-09-03 13:26 UTC · impact: major · lasted 3 h

Elevated errors for Claude Sonnet 5

Claude (Anthropic) · 2026-09-03 12:37 UTC · impact: major · lasted 19 min

Elevated errors for Claude Sonnet 5

Claude (Anthropic) · 2026-09-02 21:17 UTC · impact: major · lasted 27 min

Delays in credit purchases

Claude (Anthropic) · 2026-09-01 23:26 UTC · impact: minor · lasted 2 h

Degraded performance on platform.claude.com and Claude for Microsoft Office 365

Claude (Anthropic) · 2026-09-01 17:05 UTC · impact: minor · lasted 1 h

Degraded performance on Claude for Microsoft Office 365

Claude (Anthropic) · 2026-09-01 16:02 UTC · impact: minor · lasted 20 min

Degraded performance on claude.ai and Claude Code

Claude (Anthropic) · 2026-08-31 19:21 UTC · impact: minor · lasted 1.2 h

Degraded performance on claude.ai

Claude (Anthropic) · 2026-08-31 17:23 UTC · impact: minor · lasted 29 min

Elevated errors on Claude Code and Claude Cowork

Claude (Anthropic) · 2026-08-28 17:22 UTC · impact: major · lasted 3 h

Issues logging into Claude.ai

Claude (Anthropic) · 2026-08-24 20:11 UTC · impact: minor · lasted 15 min

Errors logging into Claude.ai

Claude (Anthropic) · 2026-08-24 17:12 UTC · impact: minor · lasted 3 min

Elevated errors for multiple models

Claude (Anthropic) · 2026-08-24 05:06 UTC · impact: major · lasted 3.4 h

Elevated errors on requests to multiple models

Claude (Anthropic) · 2026-08-20 19:16 UTC · impact: major · lasted 26 min

Elevated errors on Google connectors

Claude (Anthropic) · 2026-08-20 18:32 UTC · impact: minor · lasted 29 min

Degraded performance for Claude Opus 5 and Claude Haiku 4.5

Claude (Anthropic) · 2026-08-19 09:42 UTC · impact: minor · lasted 1.3 h

Degraded performance for multiple models

Claude (Anthropic) · 2026-08-18 16:20 UTC · impact: minor · lasted 2.7 h

Degraded performance for Claude Opus 5, Claude Sonnet 5

Claude (Anthropic) · 2026-08-17 13:56 UTC · impact: minor · lasted 1.5 h

Service disruption on Claude services

Claude (Anthropic) · 2026-08-16 21:58 UTC · impact: critical · lasted 36 min

Elevated errors for Claude Fable 5

Claude (Anthropic) · 2026-08-14 23:57 UTC · impact: major · lasted 30 min

Service disruption on Claude services

Claude (Anthropic) · 2026-08-14 20:30 UTC · impact: major · lasted 1.5 h

Issues reaching status.claude.com

Claude (Anthropic) · 2026-08-14 07:58 UTC · impact: none · lasted 2.9 h

Service disruption on Claude Code on the web and related services

Claude (Anthropic) · 2026-08-14 00:36 UTC · impact: minor · lasted 15 min

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

Claude (Anthropic) · 2026-08-13 14:33 UTC · impact: major · lasted 1.6 h

Degraded performance for multiple models

Claude (Anthropic) · 2026-08-12 13:50 UTC · impact: minor · lasted 4.3 h

Degraded performance for Claude Opus 5

Claude (Anthropic) · 2026-08-05 13:51 UTC · impact: minor · lasted 43 min

Degraded performance of multiple models

Claude (Anthropic) · 2026-08-05 07:05 UTC · impact: minor · lasted 7.1 h

Elevated errors across many models

Claude (Anthropic) · 2026-08-04 20:48 UTC · impact: major · lasted 1.2 h

Elevated errors on Claude Sonnet 5

Claude (Anthropic) · 2026-08-04 11:27 UTC · impact: minor · lasted 25 min

Elevated errors on Claude Sonnet 5

Claude (Anthropic) · 2026-08-04 06:16 UTC · impact: minor · lasted 39 min

Degraded performance on Claude Sonnet 5

Claude (Anthropic) · 2026-08-03 15:13 UTC · impact: minor · lasted 15 min

Error rates across multiple models

Claude (Anthropic) · 2026-08-03 12:52 UTC · impact: minor · lasted 1.4 h

Degraded performance on Claude Sonnet 5

Claude (Anthropic) · 2026-07-31 06:18 UTC · impact: minor · lasted 47 min

Degraded performance on Claude Opus 4.8

Claude (Anthropic) · 2026-07-30 13:43 UTC · impact: minor · lasted 41 min

Elevated errors across many models

Claude (Anthropic) · 2026-07-30 05:57 UTC · impact: major · lasted 4.9 h

Elevated errors across all models

Claude (Anthropic) · 2026-07-29 19:49 UTC · impact: critical · lasted 2.8 h

Elevated errors on Claude Opus 5 and Haiku 4.5

Claude (Anthropic) · 2026-07-27 13:39 UTC · impact: minor · lasted 57 min

Elevated errors on Claude Opus 5

Claude (Anthropic) · 2026-07-27 11:27 UTC · impact: minor · lasted 1 h

Elevated errors on Claude Opus 5

Claude (Anthropic) · 2026-07-27 08:16 UTC · impact: minor · lasted 48 min

Elevated errors for Opus 5

Claude (Anthropic) · 2026-07-26 09:17 UTC · impact: major · lasted 1.5 h

Elevated errors for Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other models

Claude (Anthropic) · 2026-07-25 21:34 UTC · impact: major · lasted 34 min

Elevated errors for Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5

Claude (Anthropic) · 2026-07-25 18:40 UTC · impact: major · lasted 1.1 h

Sonnet 4.6 and Sonnet 5 errors elevated

Claude (Anthropic) · 2026-07-25 18:13 UTC · impact: none · lasted 1 min

Elevated error rate on Opus 4.8

Claude (Anthropic) · 2026-07-24 09:09 UTC · impact: minor · lasted 1.2 h

Microsoft Office add-in availability

Claude (Anthropic) · 2026-07-22 17:56 UTC · impact: none · lasted 1.9 d