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Anthropic status page: major-impact incident hit Claude API (api.anthropic.com), Claude Code, Claude Cowork, and claude.ai, now resolved

An incident titled "Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1" listed components Claude API (api.anthropic.com), Claude Code, Claude Cowork, and claude.ai with impact major; status is resolved.

status.claude.com0b234d4deec1d066e2a0e1044bffcd03af8a8a91222bd1ec4a7c57fe3571242e

Cited change rows

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added incidentElevated errors for Claude Mythos 5.1 and Claude Fable 5.1 · major · resolved
Fields of the record before and after the change
fieldbeforeafter
components ["Claude API (api.anthropic.com)","Claude Code","Claude Cowork","claude.ai"]
impact major
incident_id t33dncr5ydvl
incident_url https://status.claude.com/incidents/t33dncr5ydvl
provider anthropic
resolved_at 2026-09-11T14:37:11.146Z
started_at 2026-09-11T14:19:51.466Z
status resolved
title Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
incident:anthropic:t33dncr5ydvl detected status.claude.com

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