Elevated errors for multiple models

Summary

Elevated errors for multiple models

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.

• Started

  Aug 24, 2026 · 5:06 AM

• Resolved

  Aug 24, 2026 · 8:30 AM

• Duration

  3h 24m

• Severity

  Major

• ◐

  Investigating

  Aug 24 · 5:06 AM Claude

  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.

• ◆

  Identified

  Aug 24 · 5:27 AM Claude

  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.

• ◆

  Identified

  Aug 24 · 6:42 AM Claude

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

• ◆

  Identified

  Aug 24 · 7:47 AM Claude

  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.

• ✓

  Resolved

  Aug 24 · 8:30 AM Claude

  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.