Anthropic investigates elevated error rates across multiple Claude models

Anthropic's status page confirmed elevated error rates across multiple Claude models including Mythos 5.1, Fable 5.1 and Opus 5 starting September 3, with the company investigating the incident.

2026-09-03 ~ 2026-09-03 · 2 related posts

• Claude Mythos 5.1, Fable 5.1 and Opus 5 hit elevated errors, Anthropic investigating — ClaudeAI-mod-bot · 2026-09-03
• Claude Status reports elevated errors across multiple models — Working_Quote_3029 · 2026-09-03