{"id":"anthropic-status-c27d35ca4548","seq":4879,"kind":"status","title":"Elevated errors for multiple models","url":"https://status.claude.com/incidents/461yvfrzpwtt","permalink":"https://vulnpulse.app/items/anthropic-status-c27d35ca4548","summary":"Sep 3 , 16:23 UTC Resolved - 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. Sep 3 , 16:06 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. Sep 3 , 15:25 UTC Update - The only affected models right now are Opus 4.8 and Opus 5. The rest of the models have recovered to baseline error rate. Sep 3 , 14:49 UTC Update - We are continuing to work on a fix for this issue. Sep 3 , 13:50 UTC Update - An exhaustive list of affect…","severity":null,"techs":["anthropic"],"cves":[],"tags":["resolved"],"source":{"id":"anthropic-status","name":"Anthropic Status"},"published_at":"2026-09-03T16:23:12.000Z","fetched_at":"2026-10-21T16:17:54.408Z"}