Yingzhe Peng Gongrui Zhang Miaosen Zhang Zhiyuan You Jie Liu Qipeng Zhu Kai Yang Xingzhong Xu Xin Geng 0001 Xu Yang 0021 LMM-R1: Empowering 3B LMMs with Strong Reasoning Abilities Through Two-Stage Rule-Based RL. 2025 March abs/2503.07536 CoRR https://doi.org/10.48550/arXiv.2503.07536 db/journals/corr/corr2503.html#abs-2503-07536 streams/journals/corr