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Elevated error rate persists for Claude Fable 5.1; cause identified, according to report

clearly official source

Requests to the Claude Fable 5.1 model are experiencing an elevated error rate. According to the operational report dated 25 October at 08:17 UTC, the cause has been identified and work on a fix is ongoing.

An operational report on Claude Status indicates an elevated error rate for requests to the Claude Fable 5.1 model. According to the latest update listed, dated 25 October at 08:17 UTC, the cause has been identified and work on a fix is ongoing.

The record also includes an investigation notice with the same timestamp. The operator promised another update as soon as possible; it has not yet confirmed that the fix is complete.

What changed

Why it matters

Work that depends on responses from the Claude Fable 5.1 model now needs to account for a higher risk of failed requests. Identifying the cause does not in itself mean that normal operation has been restored.

Two audiences, two different impacts

What this means

01

For individuals

For individuals, a failed request may interrupt a task in progress that uses the Claude Fable 5.1 model.

What to do Before continuing work with the Claude Fable 5.1 model, check the current incident status on Claude Status.
More practical updates →
02

For a business

In business workflows connected to the Claude Fable 5.1 model, the elevated error rate may disrupt the completion of subsequent steps.

Processes
What to decide Check whether the elevated error rate is also affecting your workflows that use the Claude Fable 5.1 model.
More business impacts →
Claude Fable 5.1

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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 for Claude Fable 5.1