GPT-5.5 Pro improved just 2% over two months on Frontier Math Tier 4, a benchmark for professional research mathematics. At that rate, AI will solve all Tier 4 problems within four to five years. Half are already solved.
Chapters
Math is cooked. My favorite benchmark among all of these is Frontier Math Tier 4, one of the best proxies for the ability for AIs to solve professional-level research problems in math. What do we see? We see from GPT-5.4 Pro to 5.5 Pro, approximately a 2% leap in approximately the last 2 months. What does that tell me? That tells me that we're seeing approximately 1% gains per month in research-level math coming from Frontier AIs, and we're getting closer to approximately half of all of the Frontier Math Tier 4 problems getting solved. Even just at the present pace, we're talking about essentially all Frontier Math Tier 4, all professional research-grade math problems being solved in the next 4 or 5 years.