Elevated Error Rates on Claude API Code Execution and Advanced File Analysis Tools

Incident Report for Claude

Resolved

From 22:01 UTC to 00:48 UTC, the Code Execution tool on the Claude API and Advanced File Analysis tool on claude.ai experienced elevated error rates. This incident has been resolved.

Posted Dec 05, 2025 - 01:09 UTC

This incident affected: claude.ai and Claude API (api.anthropic.com).