Outage recap · Anthropic

Claude outage — June 12, 2026

On June 12, 2026, Claude had 2 reported incidents on Anthropic's official status page. Below is what was reported — impact, timing, and the AI services the same upstream outage could affect.

We’ve suspended access to Claude Mythos 5 and Claude Fable 5

major
Started
Jun 12, 8:50 PM EDT
Resolved
Duration
not marked resolved

As reported by Anthropic's official status page (status: monitoring). We report the vendor's own words, never an inferred cause.

Elevated errors on Claude Opus 4.8

minor
Started
Jun 12, 10:03 PM EDT
Resolved
Jun 12, 10:11 PM EDT
Duration
9 min

As reported by Anthropic's official status page (status: resolved). We report the vendor's own words, never an inferred cause.

The AI cascade

Claude depends on Anthropic. When that upstream has an incident, it doesn't hit Claude alone — these AI tools share the dependency and can degrade at the same time:

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AIDownCheck is not affiliated with Anthropic. This recap summarizes incidents published on Anthropic's official status page.