Field noteOct 24, 20261 min read1 source

Claude API, claude.ai and Claude Code saw elevated errors on Claude Fable 5 and 5.1 for about 35 minutes

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Anthropic recorded a resolved incident titled “Elevated errors for Claude Fable 5 and Claude Fable 5.1.” The company’s status page says it affected claude.ai, the Claude API at api.anthropic.com, Claude Code, and Claude Cowork.

What changed: A separate Claude service disruption on Oct. 23–24 affected Fable 5 and 5.1 across Claude services for about 35 minutes.

The reported impact window ran from 05:00 to 05:35 UTC on October 24, 2026. Anthropic marked the issue as identified at 05:24 UTC. A fix was deployed at 05:41 UTC, followed by monitoring; the incident was marked resolved at 05:53 UTC.

The status entry identifies elevated errors but does not quantify failed requests, affected users, or regional scope. It also does not disclose the underlying cause, whether the named Fable models were the only models affected, or whether any customer work was lost or delayed beyond the stated interval.

Evidence / sources

  1. 1status.claude.com/incidents/0ns5clsk8p2x
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