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Incident archive

Claude outage August 18, 2026

Degraded performance for multiple models

Claude claude.ai was degraded for 2 h 41 min on August 18, 2026.

Claude recorded a minor-impact incident affecting claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork on August 18, 2026. It ran for 2 h 41 min — 2.4× the archive median of 1 h 7 min.

Started
August 18, 2026, 16:20 UTC
Resolved
August 18, 2026, 19:01 UTC
Duration
2 h 41 min
Impact
Minor

What was affected?

How long did it last?

  1. August 18, 2026, 16:20 UTCinvestigatingT+0
  2. August 18, 2026, 16:20 UTCinvestigatingT+0
  3. August 18, 2026, 17:12 UTCinvestigatingT+52 min
  4. August 18, 2026, 18:26 UTCmonitoringT+2 h 6 min
  5. August 18, 2026, 19:01 UTCresolvedT+2 h 41 min

Has this happened before?

This was incident 17 of 26 recorded in August 2026, totalling 38 h 15 min of reported disruption across all Claude components that month. claude.ai was affected by 33 other recorded incidents in the 30 days before this one started. The previous incident touching claude.ai started on August 17, 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 .