Claude Opus 4 is experiencing degraded performance

Incident Report for GitHub

Resolved

This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

Posted Sep 24, 2025 - 09:18 UTC

Update

Between around 8:16 UTC and 8:51 UTC we saw elevated errors on Claude Opus 4 and Opus 4.1, up to 49% of requests were failing. This has recovered to around 4% of requests failing, we are monitoring recovery.

Posted Sep 24, 2025 - 09:16 UTC

Investigating

We are currently investigating this issue.

Posted Sep 24, 2025 - 09:08 UTC