Zirui Liu

Fewer Tokens, Smaller Cache: Reward-Coordinated Efficient Reasoning

ReCo (Reward-Coordinated Compression), a step-wise framework in which a lightweight process-reward estimator scores each completed step and drives three components: reward-adaptive KV-cache compression that shrinks the retained cache harder at high-reward steps and less at low-reward ones, and a confidence-based early stopping that triggers when the reasoning is reliable.