Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
Partial outageResolved · started Oct 5, 2026, 1:05 PM UTC (1d ago)
Was Claude down? Anthropic reported “Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1” on Oct 5, 2026, 1:05 PM UTC. Full timeline below. This incident affects Claude — see live Claude status. Source: official vendor status feed.
Timeline
Oct 5, 2026, 1:21 PM UTC
The issue affecting Claude Mythos 5.1 and Claude Fable 5.1 has been resolved. Impact occurred from 05:40 PT / 12:40 UTC to 06:10 PT / 13:10 UTC.
Oct 5, 2026, 1:05 PM UTC
We are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
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