503RADARINCIDENT ARCHIVEMETHODOLOGY
RESOLVED

Anthropic outage — August 3, 2026

Degraded performance on Claude Sonnet 5

Anthropic’s Claude.ai was disrupted for 31m on August 3, 2026.

Key facts

DetectedAugust 3, 2026 · 15:23 UTC
Confirmed15:23 UTC
Resolved15:54 UTC
Duration31m
ServiceClaude.ai
Official recordhttps://stspg.io/w306lggygcyp

Timeline

  1. 15:23Z

    Detected · Official

    Reported directly on ANTHROPIC's official status page — no earlier independent (crowd / dependency / measurement) signal.
  2. 15:54Z

    Resolved

    Signal volume fell back below the threshold; the event was closed.

How this was detected

Confirmed by ANTHROPIC's official status page — no independent (crowd / dependency / measurement) corroboration.