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KINGY.AI / SIGNAL OFFICIAL SOURCES ONLY
INCIDENT RECORD / ANTHROPIC

Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1

A retained official-source incident record. The provider’s original report remains the primary source.

Status
Resolved
Service scope
unspecified
Reported start
Sep 11, 14:19 UTC
Resolved
Sep 11, 14:37 UTC
Duration
18m
Timing basis
first report → resolution
Components
Not specified by source

Read the official incident ↗

Resolution time is the source’s reported resolution, and may follow service recovery. Dates may be corrected by providers; Kingy retains normalized revisions when reports change.

Record provenance

Permanent Kingy record: https://kingy.ai/ai-status/incidents/anthropic/d059b784b3d5d4907c3b8174/

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