MindOmni: Unleashing Reasoning Generation in Vision Language Models with RGPO

• URL: http://arxiv.org/abs/2505.13031v2
• Date: Wed, 11 Jun 2025 15:44:25 GMT
• Title: MindOmni: Unleashing Reasoning Generation in Vision Language Models with RGPO
• Authors: Yicheng Xiao, Lin Song, Yukang Chen, Yingmin Luo, Yuxin Chen, Yukang Gan, Wei Huang, Xiu Li, Xiaojuan Qi, Ying Shan,
• Abstract summary: Recent text-to-image systems face limitations in handling multimodal inputs and complex reasoning tasks.<n>We introduce Mind Omni, a unified multimodal large language model that addresses these challenges by incorporating reasoning generation through reinforcement learning.
• Score: 87.52631406241456
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recent text-to-image systems face limitations in handling multimodal inputs and complex reasoning tasks. We introduce MindOmni, a unified multimodal large language model that addresses these challenges by incorporating reasoning generation through reinforcement learning. MindOmni leverages a three-phase training strategy: i) design of a unified vision language model with a decoder-only diffusion module, ii) supervised fine-tuning with Chain-of-Thought (CoT) instruction data, and iii) our proposed Reasoning Generation Policy Optimization (RGPO) algorithm, utilizing multimodal feedback to effectively guide policy updates. Experimental results demonstrate that MindOmni outperforms existing models, achieving impressive performance on both understanding and generation benchmarks, meanwhile showcasing advanced fine-grained reasoning generation capabilities, especially with mathematical reasoning instruction. All codes will be made public at https://github.com/TencentARC/MindOmni

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