503RADARINCIDENT ARCHIVEMETHODOLOGY
RESOLVED

Anthropic outage — June 3, 2026

Elevated errors on Haiku 4.5

Anthropic’s Claude.ai was disrupted for 49d 17h on June 3, 2026.

Key facts

DetectedJune 3, 2026 · 07:13 UTC
Confirmed07:13 UTC
Resolved00:19 UTC
Duration49d 17h
ServiceClaude.ai
Official recordhttps://stspg.io/zzlysdsgthl6

Timeline

  1. 07:13Z

    Detected · Signal

    2 crowd signals for Claude.ai on ANTHROPIC crossed the signal threshold.
  2. 07:13Z

    Confirmed · Official

    An official ANTHROPIC status-page notice corroborated the event the same cycle.
  3. 00:19Z

    Resolved

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

What people reported

“🔥 Hot Repo! 🔥 (100+ new stars) 📦 ComposioHQ / awesome-claude-skills ⭐ 68,503 (+155) 🗒 Python A curated list of awesome Claude Skills, resources, and tools for”bluesky_jetstream · 17:16 UTC
“Claude AI is reportedly down for hundreds of users right now. Are you one of them? #ClaudeDown #Anthropic #ClaudeAiDown https://community.designtaxi.com/topic/3”@statusisdown.bsky.social · 17:24 UTC

How this was detected

1 independent evidence class for claude-ai on ANTHROPIC. 2 crowd reports across bluesky (single platform — not corroborating), z=-0.2σ vs the cell baseline. Official notice confirms it.