Anthropic outage — June 3, 2026
Elevated errors for Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other models
Anthropic’s Claude.ai was disrupted for 52d 15h on June 3, 2026.
Key facts
| Detected | June 3, 2026 · 07:13 UTC |
| Confirmed | 07:13 UTC |
| Resolved | 22:19 UTC |
| Duration | 52d 15h |
| Service | Claude.ai |
| Official record | https://stspg.io/9w9f5y5k2vwx |
Timeline
- 07:13Z
Detected · Signal
3 crowd signals for Claude.ai on ANTHROPIC crossed the signal threshold. - 07:13Z
Confirmed · Official
An official ANTHROPIC status-page notice corroborated the event the same cycle. - 22:19Z
Resolved
Signal volume fell back below the threshold; the event was closed.
What people reported
“You might find you have wsl2 installed - that gives you a complete linux system sitting inside windows, that the university might have forgotten to lock down :)”bluesky_jetstream · 13:28 UTC
“Claude AI is reportedly down for some users right now. Are you one of them? #ClaudeDown #Anthropic #ClaudeAiDown https://community.designtaxi.com/topic/33915-i”@statusisdown.bsky.social · 14:04 UTC
“Is Claude AI down for you as well? #ClaudeAI #ClaudeDown https://community.designtaxi.com/topic/33915-is-claude-anthropic-ai-down-july-25-2026/”@statusisdown.bsky.social · 18:11 UTC
How this was detected
1 independent evidence class for claude-ai on ANTHROPIC. 3 crowd reports across bluesky (single platform — not corroborating), z=+0.1σ vs the cell baseline. Official notice confirms it.