Claude Code incident

Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1

Resolved after 15 min.

Started: Oct 5, 2026, 13:05 UTC
Ended: Oct 5, 2026, 13:21 UTC
Worst state: Partial outage
On Claude Code’s status page: Oct 5, 2026, 13:05 UTC Source
Components: Claude API (api.anthropic.com), Claude Code, Claude Cowork, claude.ai

Timeline

13:05 UTC Claude Code status page · Reported Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
13:05 UTC Claude Code status page · Investigating We are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
13:21 UTC Claude Code status page · Resolved The issue affecting Claude Mythos 5.1 and Claude Fable 5.1 has been resolved. Impact occurred from 05:40 PT / 12:40 UTC to 06:10 PT / 13:10 UTC.

Site Qwality, “Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1,” Oct 5, 2026, https://siteqwality.com/is-claude-code-down/incidents/claude-code-202610051305/

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