Claude Mythos Hits 3 Hours 6 Minutes Before Experts’ Year-End Forecast

专家预测年底才到，Claude Mythos今天就跑出3小时6分！

Anthropic Claude Mythos completed 186 minutes of autonomous tasks at an 80% success rate on the METR benchmark, and the post says this matches the 3–4 hour median forecast that experts had placed at the end of 2026.

Why it matters: HKR-H/K/R all pass: the 3h06m autonomy result is a strong hook, METR 80%/186 minutes gives concrete signal, and agent safety lands with practitioners. Single-source coverage without release details or reproducible setup keeps it below p1.