Anthropic Confirms Elevated Error Rates Across Multiple Claude Models

Anthropic's status page confirmed elevated error rates across Claude Mythos 5.1, Fable 5.1 and Opus 5 starting 13:26 UTC on September 3, coinciding with reports of ChatGPT 404 errors on the same day.

2026-09-03 ~ 2026-09-04 · 64 related posts

3 near-duplicate retellings: TechnicalTantrum · Msun17 · GetDeepSignal