SPARK: Stepwise Process-Aware Rewards for Reference-Free Reinforcement Learning

Benchmark Model Rank Results
mathematical-reasoning-on-aime-2025PRM-CoT (Process-Aware) (Qwen2.5-Math-7B)–Accuracy: 20.0
mathematical-reasoning-on-aime24PRM-CoT (Process-Aware) (Qwen2.5-Math-7B)–Acc: 30.0
mathematical-reasoning-on-math-500PRM-CoT (Process-Aware) (Qwen2.5-Math-7B)–Accuracy: 85.4
mathematical-reasoning-on-minerva-mathPRM-CoT (Process-Aware) (Qwen2.5-Math-7B)–Accuracy: 40.1
mathematical-reasoning-on-olympiadbenchPRM-CoT (Process-Aware) (Qwen2.5-Math-7B)–Accuracy: 42.7