Elevated errors on Opus 4.6 Fast Mode

Incident Report for Claude

Resolved

This incident has been resolved.
Posted Mar 28, 2026 - 14:53 UTC

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Mar 28, 2026 - 13:55 UTC

Investigating

We are currently investigating this issue.
Posted Mar 28, 2026 - 13:01 UTC
This incident affected: platform.claude.com (formerly console.anthropic.com), Claude API (api.anthropic.com), and Claude Code.