Unverified Reddit post claims GPT-6.1 Sol lands third on Humanity's Last Exam Diamond

141_1337 · reddit · 2026-10-01

A Reddit post claims a model called "GPT-6.1 Sol" has taken third place on Humanity's Last Exam (Diamond split), with leaderboard screenshots attached. The claim is unconfirmed by OpenAI and the model name looks dubious — treat as an unverified leak until corroborated.

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