Process Rewards for Outcome-Guided Reasoning Steps in LLM Reinforcement Learning

arXiv:2604.02341 · cs.LG, cs.AI · Submitted 2026-02-08 · Read on arXiv

cs.LG, cs.AI

Submitted: 2026-02-08

Updated: 2026-10-13

Terminology

• Reinforcement Learning — 2× in this paper · explained in 4 episodes
• Failure Modes — 1× in this paper · explained in 3 episodes
• GRPO — 1× in this paper · explained in 6 episodes
• Group Relative Policy Optimization (GRPO) — 1× in this paper · explained in 5 episodes
• Process Reward Models (PRMs) — 1× in this paper · explained in 3 episodes
• Reward Hacking — 1× in this paper · explained in 8 episodes
• Systematic Bias — 1× in this paper · explained in 3 episodes
• Verifiable Rewards — 1× in this paper · explained in 2 episodes

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