Fable 5.1 tops vision+logic benchmark near the top; scores 78 on private logic test vs prior high of 61

Afinetheorem · x · 2026-09-02

An independent tester's quick take on Fable 5.1: it still writes in that very Claude way; it's the first non-Gemini model to rank right near the top on a vision+logic benchmark; and it scored 78 on a private logic benchmark written for another lab, well above the previous high of 61 (Sol 5.6 Pro).

Related event: Fable 5.1 Sets Record on Private Vision-Logic Benchmark(3 posts)→

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