IgniteStatus
Search
Get startedOfficial provider timeline
Menu
ServicesMy stackWallboard
APIMCPSign in

Claude · incident

Elevated errors for multiple models

Provider lifecycle: monitoring

Get one resolution alert

Enter an email and we’ll send a confirmation link. We use it only for this incident and delete it after the alert.

Partial outage
Provider incident confirmed

Claude Status has not marked this as resolved. The latest official update is shown first below.

Official timeline

Provider updates

6
  1. monitoring

    A fix has been deployed for Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and we are monitoring for recovery.

    Affected: Claude API (api.anthropic.com), Claude Code, Claude Cowork, claude.ai

  2. identified

    The only affected models right now are Opus 4.8 and Opus 5. The rest of the models have recovered to baseline error rate.

    Affected: Claude API (api.anthropic.com), Claude Code, Claude Cowork, claude.ai

  3. identified

    We are continuing to work on a fix for this issue.

    Affected: Claude API (api.anthropic.com), Claude Code, Claude Cowork, claude.ai

  4. identified

    An exhaustive list of affected models: Mythos/Fable 5.1, Mythos/Fable 5, Opus 5, Opus 4.8, Opus 4.6.

    Affected: Claude API (api.anthropic.com), Claude Code, Claude Cowork, claude.ai

  5. identified

    We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.

    Affected: Claude API (api.anthropic.com), Claude Code, Claude Cowork, claude.ai

  6. investigating

    We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.

    Affected: Claude API (api.anthropic.com), Claude Code, Claude Cowork, claude.ai