AIBullisharXiv – CS AI · 14h ago7/10
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Bringing Value Models Back: Generative Critics for Value Modeling in LLM Reinforcement Learning
Researchers propose Generative Actor-Critic (GenAC), a new approach to value modeling in large language model reinforcement learning that uses chain-of-thought reasoning instead of one-shot scalar predictions. The method addresses a longstanding challenge in credit assignment by improving value approximation and downstream RL performance compared to existing value-based and value-free baselines.