Anthropic records a major-impact incident on 2026-08-24, with elevated Claude model errors from 04:50 to 07:36 UTC

Sources: status API, status history, discussion
Summary: Anthropic rates the incident major and put claude.ai, api.anthropic.com, Claude Code and Claude Cowork into partial outage for two hours and 46 minutes. The status updates name Claude Mythos 5, Claude Fable 5, Claude Opus 5 and Claude Opus 4.8, and the resolution note gives the window as 04:50 to 07:36 UTC. Two further incidents the same day, 16:02 to 16:08 and 20:00 to 20:08 UTC, are rated minor and affected subscription login for claude.ai and Claude Code.
Why it matters: API calls and agent runs against Claude models returned elevated errors for the full window, so anything calling api.anthropic.com or running under Claude Code that morning failed rather than slowed.