Anthropic's Fable 5.1 Scores 65% on Humanity's Last Exam

Anthropic's Fable 5.1 achieved 65% on the Humanity's Last Exam benchmark when using tools; the multiple-choice and short-answer test remains unsaturated.

2026-09-02 ~ 2026-09-02 · 2 related posts

• Humanity's Last Exam unsaturated, Fable 5.1 scores 65% with tools — Sauers_ · 2026-09-02
• Anthropic's Fable 5.1 Scores 65% on Humanity's Last Exam — jakehalloran1 · 2026-09-02