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Anthropic mitigated a four-minute overload incident on the Fable 5.2 and Mythos 5.2 models

clearly official source

A brief, four-minute outage with overloaded-type errors on the Fable 5.2 and Mythos 5.2 models, reported by Anthropic on 10 November at 21:47 UTC, has been resolved.

Anthropic recorded a brief outage on 10 November 2026 at 21:47 UTC affecting the Fable 5.2 and Mythos 5.2 models, during which overloaded-type errors occurred due to high load. According to the status page, the incident lasted four minutes and was subsequently mitigated; the status is now "Resolved."

The source provides no further details about the scope of the impact on users or about any follow-up measures.

What changed

Why it matters

This is a short-lived, already resolved operational incident with no documented long-term impact on users or companies, recorded only for the sake of completeness of the status history.

Anthropic API Fable 5.2 incident Mythos 5.2

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Event sources

clearly official source · 1 publisher, 0 independent. We count feeds from the same owner only once.

1
Claude Status — incident history official service status · first detected Elevated errors on Fable 52 and Mythos 52