A 0-parameter 'pick the longest option' model tops HLE, exposing benchmark flaw

antoine_chaffin · x · 2026-10-14

HF researcher antoinechaffin was surprised to see his model Jev score above random chance on Humanity's Last Exam (HLE) — a benchmark so hard that strong LLMs without reasoning struggle.

After inspecting the data, he announced the satirical SOTA: a 0-parameter 'pick the longest option' model that tops the leaderboard, showing answer length correlates with correctness and can be gamed.

Related event: Zero-parameter "pick the longest answer" model beats decision models on HLE benchmark(6 posts)→

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