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Claude: Elevated errors for multiple models

Impact: majorStatus: resolvedStarted Resolved (3.4 h)5 updatesSource: stspg.io (opens in new tab)
Summary

Claude reported a major incident involving elevated errors across claude.ai, Claude API (api.anthropic.com), Claude Code and Claude Cowork, affecting Claude Mythos 5, Claude Fable 5, Claude Opus 5 and Claude Opus 4.8. It started 2026-08-24 05:06 UTC and was resolved 2026-08-24 08:30 UTC, lasting 3 h 24 min.

Machine-written from the archived incident (Sol). Check the timeline before relying on it.

Affected components: Claude CoworkClaude API (api.anthropic.com)claude.aiClaude Code

Discussed on Hacker News

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Timeline of updates

  1. investigating

    We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, and Claude Opus 4.8. We will provide an update as soon as possible.

  2. identified

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

  3. identified

    We are continuing to work to resolve issues causing elevated requests on multiple models. We will provide an update as soon as possible.

  4. identified

    At this time, we have seen errors stabilize on Opus 5 and Fable 5, and are working to fully resolve success rates on all affected models. We will provide an update as soon as possible.

  5. resolved

    This issue has been resolved. From 9:50pm PT / 04:50 UTC through 00:36am PT / 07:36 UTC, users saw elevated errors on requests to Claude models, including Claude Opus 5 and Fable 5.

Rewindex changes for this incident

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Claude profile · Recent Claude incidents · Markdown · JSON