Elevated errors on Claude Sonnet 4.5

Incident Report for Claude

Resolved

As of 03:26 PT / 11:26 UTC the error rate has now reduced to the baseline.
Posted Feb 23, 2026 - 11:36 UTC

Identified

The issue has been identified and a fix is being implemented.
Posted Feb 23, 2026 - 11:29 UTC

Investigating

We are currently investigating this issue.
Posted Feb 23, 2026 - 11:21 UTC
This incident affected: claude.ai, Claude API (api.anthropic.com), and Claude Code.