Elevated errors for requests to Claude 4 Sonnet

Incident Report for Anthropic

Resolved

This incident has been resolved.
Posted Jul 15, 2025 - 17:00 UTC

Update

We are continuing to monitor for any further issues.
Posted Jul 15, 2025 - 16:08 UTC

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Jul 15, 2025 - 15:59 UTC

Identified

The issue has been identified and a fix is being implemented.
Posted Jul 15, 2025 - 15:01 UTC

Investigating

Sonnet 4 has been sending elevated errors since 13:05 UTC. We are currently investigating this issue.
Posted Jul 15, 2025 - 13:05 UTC
This incident affected: claude.ai, console.anthropic.com, and api.anthropic.com.