Anthropic outage — August 31, 2026
Degraded performance on claude.ai
Anthropic’s Claude.ai was disrupted for 46m on August 31, 2026.
Key facts
| Detected | August 31, 2026 · 17:23 UTC |
| Confirmed | 17:23 UTC |
| Resolved | 18:09 UTC |
| Duration | 46m |
| Service | Claude.ai |
| Official record | https://stspg.io/hmpwykr9h567 |
Timeline
- 17:23Z
Detected · Signal
2 crowd signals for Claude.ai on ANTHROPIC crossed the signal threshold. - 17:23Z
Confirmed · Official
An official ANTHROPIC status-page notice corroborated the event the same cycle. - 18:09Z
Resolved
Signal volume fell back below the threshold; the event was closed.
Evidence
| Official status feed | degraded (changed 17:23 UTC) |
| Anomaly score | +0.95σ above this cell's own baseline |
| Engine confidence | 95% |
Outage-related signals per hour over the live window, oldest → newest (peak 2).
How this was detected
1 independent evidence class for claude-ai on ANTHROPIC. 2 crowd reports across bluesky (single platform — not corroborating), z=+1.0σ vs the cell baseline. Official notice confirms it.