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All agents  /  Claude Code  /  History  /  Oct 25, 2026

Claude Code outage on Oct 25, 2026: elevated errors for Claude Sonnet 5.5 and other models

Resolved after 1 h 39 min.

06:14 UTC to 07:53 UTC your time. Anthropic: “Elevated errors for Claude Sonnet 5.5 and other models.” 0 reports here during the incident.

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Reports during the incident

Every 15 minutes, 05:00 UTC to 09:00 UTC. Grey: normal. Red line: official incident.
05:00 UTC06:14 UTC07:53 UTC09:00 UTC

What people reported

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Anthropic's updates

Quoted from status.claude.com

  1. 06:14 UTC

    Investigating

    We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, Claude Opus 5.5, Claude Sonnet 5.5, and Claude Haiku 5.5. We will provide an update as soon as possible.

  2. 06:27 UTC

    Identified

    We have identified the cause of elevated errors on requests to Claude Sonnet 5.5 and are working on a fix. We will provide an update as soon as possible.

  3. 06:35 UTC

    Monitoring

    A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.

  4. 07:53 UTC

    Resolved

    The issue affecting Claude services has been resolved. Impact occurred from 23:05 PT on October 24 / 06:05 UTC on October 25 to 23:35 PT on October 24 / 06:35 UTC on October 25.

Other Claude Code incidents

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