
status.claude.com
September 3, 2026
1 min read
58/100
Summary
The issue affecting Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 has been resolved. Impact has ended as of 9:16 PT / 16:16 UTC. Posted Sep 03, 2026 - 16:23 UTC Monitoring A fix has been deployed for Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and we are monitoring for recovery. Posted Sep 03, 2026 - 16:06 UTC Update The only affected models right now are Opus 4.8 and Opus 5. T...