Claude outage October 23, 2026
Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
Claude claude.ai was down for 34 min on October 23, 2026.
Claude recorded a critical-impact incident affecting claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork on October 23, 2026. It ran for 34 min — 33 min shorter than the archive median of 1 h 7 min.
- Started
- October 23, 2026, 23:37 UTC
- Resolved
- October 24, 2026, 00:11 UTC
- Duration
- 34 min
- Impact
- Critical
What was affected?
How long did it last?
- October 23, 2026, 23:37 UTCinvestigatingT+0
- October 23, 2026, 23:39 UTCidentifiedT+2 min
- October 23, 2026, 23:54 UTCmonitoringT+17 min
- October 24, 2026, 00:11 UTCresolvedT+34 min
Has this happened before?
This was incident 8 of 16 recorded in October 2026, totalling 172 h 2 min of reported disruption across all Claude components that month. claude.ai was affected by 5 other recorded incidents in the 30 days before this one started. The previous incident touching claude.ai started on October 22, 2026. These comparisons are drawn from our archive, which starts on July 14, 2026. See the full outage history.
Summarized by Claude Network from Claude Status. Last verified .