Updated 5:56 a.m. Eastern on October 27, 2026
Claude says the issue involving elevated errors on requests to Claude Sonnet 5.5 has been resolved in its latest official update.
What is affected
The incident involved elevated errors on requests to Claude Sonnet 5.5, with claude.ai, Claude API, Claude Code and Claude Cowork listed as affected components.
Official update timeline
We are investigating elevated errors on requests to Claude Sonnet 5.5. We will provide an update as soon as possible.
A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery.
The issue affecting Claude services has been resolved.
