Anthropic outage — August 16, 2026
Service disruption on Claude services
Anthropic’s Claude.ai was disrupted for 14h 45m on August 16, 2026. 503Radar’s sensors raised the first signal at 19:38 UTC, 2h 29m before the official status page acknowledged impact.
Key facts
| Detected | August 16, 2026 · 19:38 UTC |
| Confirmed | 22:08 UTC · lead time 2h 29m |
| Resolved | 10:24 UTC |
| Duration | 14h 45m |
| Service | Claude.ai |
Timeline
- 19:38Z
Detected · Signal
5 crowd signals for Claude.ai on ANTHROPIC crossed the signal threshold. - 22:08Z
Confirmed · Official
An official ANTHROPIC status-page notice corroborated the event — 2h 29m after detection. - 10:24Z
Resolved
Signal volume fell back below the threshold; the event was closed.
How this was detected
1 independent evidence class for claude-ai on ANTHROPIC. 8 crowd reports across bluesky, mastodon (below the anomaly threshold), z=+0.4σ vs the cell baseline. Official notice confirms it, 2h 29m after the crowd.