Elevated errors on Claude Opus 4.1

Incident Report for Anthropic

Resolved

As of 0:50 PT / 7:50 UTC we have mitigated the incident.
Posted Aug 28, 2025 - 11:20 UTC

Investigating

We are investigating an issue with Claude Opus 4.1 that started at 23:10 PT / 6:10 UTC.
Posted Aug 28, 2025 - 06:30 UTC
This incident affected: claude.ai, console.anthropic.com, api.anthropic.com, and Claude Code.