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MARPO: A Reflective Policy Optimization for Multi Agent Reinforcement Learning

Published: December 28, 2025 | arXiv ID: 2512.22832v1

By: Cuiling Wu , Yaozhong Gan , Junliang Xing and more

We propose Multi Agent Reflective Policy Optimization (MARPO) to alleviate the issue of sample inefficiency in multi agent reinforcement learning. MARPO consists of two key components: a reflection mechanism that leverages subsequent trajectories to enhance sample efficiency, and an asymmetric clipping mechanism that is derived from the KL divergence and dynamically adjusts the clipping range to improve training stability. We evaluate MARPO in classic multi agent environments, where it consistently outperforms other methods.

Category
Computer Science:
Multiagent Systems