Elevated errors on claude.ai, Claude Code, Claude Cowork and the Claude API

Global World Thu, 01 Oct 2026 14:18:27 GMT Moderate confidence — 64/100

Update We have applied a mitigation and error rates have dropped substantially.
Some sign-in attempts, account actions and Claude Code and Cowork sessions are still failing.
We are continuing to work on a full fix.

Unverified

Update We have applied a mitigation and error rates have dropped substantially.
Some sign-in attempts, account actions and Claude Code and Cowork sessions are still failing.
We are continuing to work on a full fix.

Sources: Claude