Elevated errors across many models

Summary

Elevated errors across many models

This incident has been resolved.

• Started

  Jul 30, 2026 · 5:57 AM

• Resolved

  Jul 30, 2026 · 10:48 AM

• Duration

  4h 51m

• Severity

  Major

• ◐

  Investigating

  Jul 30 · 5:57 AM Claude

  We are currently investigating this issue.

• ◆

  Identified

  Jul 30 · 6:26 AM Claude

  All models except Opus 5 have recovered. We're working to recover Opus 5 as well.

• ◆

  Identified

  Jul 30 · 7:33 AM Claude

  As of 7:32 UTC / 0:32 PT, Opus 5 errors are back to baseline but we're seeing again Sonnet 5's errors up.

• ◆

  Identified

  Jul 30 · 8:06 AM Claude

  As of 8:05 UTC / 1:05 PT, Sonnet 5 errors are back to baseline, but we're seeing an increased error rate on Fable 5.

• ◆

  Identified

  Jul 30 · 8:33 AM Claude

  As of 01:33 PT / 08:33 UTC we are back to errors across all models.

• ◉

  Monitoring

  Jul 30 · 10:03 AM Claude

  As of 2:58 PT / 9:58 UTC the errors are back to baseline.

• ◉

  Monitoring

  Jul 30 · 10:23 AM Claude

  We are also investigating issues with Opus 4.7 and Opus 4.5.

• ✓

  Resolved

  Jul 30 · 10:48 AM Claude

  This incident has been resolved.