Claude outage July 21, 2026
Elevated errors on several models
Claude claude.ai was down for 2 h 44 min on July 21, 2026.
Claude recorded a critical-impact incident affecting claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork on July 21, 2026. It ran for 2 h 44 min — 2.4× the archive median of 1 h 7 min.
- Started
- July 21, 2026, 15:35 UTC
- Resolved
- July 21, 2026, 18:18 UTC
- Duration
- 2 h 44 min
- Impact
- Critical
What was affected?
How long did it last?
- July 21, 2026, 15:35 UTCinvestigatingT+0
- July 21, 2026, 15:51 UTCidentifiedT+17 min
- July 21, 2026, 17:07 UTCmonitoringT+1 h 33 min
- July 21, 2026, 18:18 UTCresolvedT+2 h 44 min
Has this happened before?
This was incident 19 of 38 recorded in July 2026, totalling 113 h of reported disruption across all Claude components that month. claude.ai was affected by 15 other recorded incidents in the 30 days before this one started. The previous incident touching claude.ai started on July 21, 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 .