rStar-Math (Qwen2-Math-7B base) is an AI model developed by Microsoft Research Asia, Peking University and Tsinghua University (China), first published in August 2025. It works in the language domain, on tasks such as language modeling/generation and mathematical reasoning.
Epoch AI has no training-compute estimate for this model. The model has 7,000,000,000 parameters. Training ran on 80 NVIDIA H100 SXM5 80GB.
Access: Unreleased. Its weights are not openly released. It is built on top of Qwen2-Math-7B. The reference paper has 308 citations. Epoch AI rates the confidence of this record as confident.