FrontierMath is a mathematical benchmarking platform designed to test the limits of artificial intelligence in solving complex mathematical problems. Created by over 60 mathematicians, it spans the full spectrum of modern mathematics, from algebraic geometry to Zermelo-Fraenkel set theory. Each problem on FrontierMath requires expert mathematicians to invest hours of work, and even state-of-the-art AI systems like GPT-4 and Gemini can solve less than 2% of the problems. This platform provides a genuine assessment environment, with all problems being novel and unpublished, eliminating the common data contamination issues found in existing benchmarks.