o1-mini

OpenAI's cost-efficient reasoning model optimized for STEM tasks. Uses same high-compute reinforcement learning pipeline as o1-preview but with smaller, faster model. Achieves 70% on AIME math competition (competitive with o1's 74.4%), placing it in top 500 US high school students. Reaches 1650 Elo on Codeforces (86th percentile of programmers), nearly matching o1's 1673 Elo. Generates answers 3-5x faster than o1-preview while being 80% cheaper. Excels at STEM reasoning but performs worse on non-STEM factual knowledge. Recommended upgrade to o3-mini available.