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Main Authors: Yuan, Ruifeng, Xiao, Chenghao, Leng, Sicong, Wang, Jianyu, Li, Long, Xu, Weiwen, Chan, Hou Pong, Zhao, Deli, Xu, Tingyang, Wei, Zhongyu, Zhang, Hao, Rong, Yu
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2507.22607
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author Yuan, Ruifeng
Xiao, Chenghao
Leng, Sicong
Wang, Jianyu
Li, Long
Xu, Weiwen
Chan, Hou Pong
Zhao, Deli
Xu, Tingyang
Wei, Zhongyu
Zhang, Hao
Rong, Yu
author_facet Yuan, Ruifeng
Xiao, Chenghao
Leng, Sicong
Wang, Jianyu
Li, Long
Xu, Weiwen
Chan, Hou Pong
Zhao, Deli
Xu, Tingyang
Wei, Zhongyu
Zhang, Hao
Rong, Yu
contents Reinforcement learning has proven its effectiveness in enhancing the reasoning capabilities of large language models. Recent research efforts have progressively extended this paradigm to multimodal reasoning tasks. Due to the inherent complexity and diversity of multimodal tasks, especially in semantic content and problem formulations, existing models often exhibit unstable performance across various domains and difficulty levels. To address these limitations, we propose VL-Cogito, an advanced multimodal reasoning model trained via a novel multi-stage Progressive Curriculum Reinforcement Learning (PCuRL) framework. PCuRL systematically guides the model through tasks of gradually increasing difficulty, substantially improving its reasoning abilities across diverse multimodal contexts. The framework introduces two key innovations: (1) an online difficulty soft weighting mechanism, dynamically adjusting training difficulty across successive RL training stages; and (2) a dynamic length reward mechanism, which encourages the model to adaptively regulate its reasoning path length according to task complexity, thus balancing reasoning efficiency with correctness. Experimental evaluations demonstrate that VL-Cogito consistently matches or surpasses existing reasoning-oriented models across mainstream multimodal benchmarks spanning mathematics, science, logic, and general understanding, validating the effectiveness of our approach.
format Preprint
id arxiv_https___arxiv_org_abs_2507_22607
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle VL-Cogito: Progressive Curriculum Reinforcement Learning for Advanced Multimodal Reasoning
Yuan, Ruifeng
Xiao, Chenghao
Leng, Sicong
Wang, Jianyu
Li, Long
Xu, Weiwen
Chan, Hou Pong
Zhao, Deli
Xu, Tingyang
Wei, Zhongyu
Zhang, Hao
Rong, Yu
Computer Vision and Pattern Recognition
Artificial Intelligence
Computation and Language
Reinforcement learning has proven its effectiveness in enhancing the reasoning capabilities of large language models. Recent research efforts have progressively extended this paradigm to multimodal reasoning tasks. Due to the inherent complexity and diversity of multimodal tasks, especially in semantic content and problem formulations, existing models often exhibit unstable performance across various domains and difficulty levels. To address these limitations, we propose VL-Cogito, an advanced multimodal reasoning model trained via a novel multi-stage Progressive Curriculum Reinforcement Learning (PCuRL) framework. PCuRL systematically guides the model through tasks of gradually increasing difficulty, substantially improving its reasoning abilities across diverse multimodal contexts. The framework introduces two key innovations: (1) an online difficulty soft weighting mechanism, dynamically adjusting training difficulty across successive RL training stages; and (2) a dynamic length reward mechanism, which encourages the model to adaptively regulate its reasoning path length according to task complexity, thus balancing reasoning efficiency with correctness. Experimental evaluations demonstrate that VL-Cogito consistently matches or surpasses existing reasoning-oriented models across mainstream multimodal benchmarks spanning mathematics, science, logic, and general understanding, validating the effectiveness of our approach.
title VL-Cogito: Progressive Curriculum Reinforcement Learning for Advanced Multimodal Reasoning
topic Computer Vision and Pattern Recognition
Artificial Intelligence
Computation and Language
url https://arxiv.org/abs/2507.22607