17 Jan 2024

AlphaGeometry solves 25 of 30 olympiad geometry problems without human demonstrations

AI and autonomous agents
AI illustration · Illustrative scene, not a photograph of the specific device or experiment.

What was demonstrated

AlphaGeometry pairs a language model, trained from scratch on millions of synthetically generated theorems and proofs, with a symbolic deduction engine. On a test set of 30 recent olympiad-level Euclidean geometry problems it solved 25, compared with 10 for the previous best method. Its proofs are human-readable and were evaluated by human experts.

Why it matters

It shows that synthetic data can stand in for scarce human-written formal proofs in at least one mathematical domain, a bottleneck for automated reasoning systems.

Caveats

  • Scope is limited to Euclidean plane geometry; the approach was not shown to transfer to other areas of mathematics.
  • The test set is small (30 problems), so the comparison with human medallists is approximate.
  • Problems were translated into the system's formal language by people before solving.

Technology profiles

Sources

  1. peer reviewed paper
    Solving olympiad geometry without human demonstrations
    Trieu H. Trinh, Yuhuai Wu, Quoc V. Le et al.. Nature, 17 Jan 2024. DOI: 10.1038/s41586-023-06747-5.

Last reviewed 20 Oct 2026.