Elevated errors on Claude Opus 4.1

Incident Report for Anthropic

Resolved

As of 7:05 PT / 14:05 UTC the errors have returned to the baseline.
Posted Sep 11, 2025 - 14:29 UTC

Investigating

We are investigating an issue with Claude Opus 4.1 that started at 6:10 PT / 13:10 UTC.
Posted Sep 11, 2025 - 13:27 UTC
This incident affected: claude.ai, console.anthropic.com, api.anthropic.com, and Claude Code.