Humanfia tops Lean-Eval with 166 problems solved on under 50k tokens via smart agent flow

YouJiacheng · x · 2026-08-18

The Humanfia team, powered by Humanize「2」, ranks #1 on the Lean-Eval leaderboard with 166 problems solved, 10 ahead of second place. Developer YouJiacheng notes they didn't brute-force tokens — total token cost stayed under 50k — by using a smart agent flow to drive the loop, and most team members aren't math majors, highlighting how much agent orchestration can leverage formal-proof benchmarks.

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