Elevated error rates for Opus 4.5

Incident Report for Claude

Resolved

This incident has been resolved.
Posted Jul 20, 2026 - 12:48 UTC

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Jul 20, 2026 - 10:57 UTC

Update

We are continuing to work on a fix for this issue.
Posted Jul 20, 2026 - 10:05 UTC

Identified

The issue has been identified and a fix is being implemented.
Posted Jul 20, 2026 - 07:57 UTC

Investigating

We are currently investigating this issue.
Posted Jul 20, 2026 - 07:03 UTC
This incident affected: Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code, and Claude Cowork.