Claude change history: Elevated errors for multiple models

Claude reported a major incident involving elevated errors across claude.ai, Claude API (api.anthropic.com), Claude Code and Claude Cowork, affecting Claude Mythos 5, Claude Fable 5, Claude Opus 5 and Claude Opus 4.8. It started 2026-08-24 05:06 UTC and was resolved 2026-08-24 08:30 UTC, lasting 3 h 24 min.