Anthropic experienced a critical incident on July 21, 2026 affecting Claude Code and Claude Cowork, lasting 23m. The incident has been resolved; the full update timeline is below.
Affected components
Claude CodeClaude Cowork
Update timeline
- identified Jul 21, 2026, 05:40 PM UTC
We are investigating an outage affecting features such as document creation in claude.ai, Cowork Remote, Claude Code, Claude Code Remote, and Claude Design
- identified Jul 21, 2026, 05:41 PM UTC
We are continuing to work on a fix for this issue.
- identified Jul 21, 2026, 05:46 PM UTC
We are continuing to work on a fix for this issue.
- identified Jul 21, 2026, 05:47 PM UTC
We are continuing to work on a fix for this issue.
- monitoring Jul 21, 2026, 05:51 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Jul 21, 2026, 06:03 PM UTC
This incident has been resolved.