Qianfan-VL: Domain-Enhanced Universal Vision-Language Models

Daxiang Dong; Mingming Zheng; Dong Xu; Bairong Zhuang; Wenyu Zhang; Chunhua Luo; Haoran Wang; Zijian Zhao; Jie Li; Yuxuan Li; Hanjun Zhong; Mengyue Liu; Jieting Chen; Shupeng Li; Lun Tian; Yaping Feng; Xin Li; Donggang Jiang; Yong Chen; Yehua Xu; Duohao Qin; Chen Feng; Dan Wang; Henghua Zhang; Jingjing Ha; Jinhui He; Yanfeng Zhai; Chengxin Zheng; Jiayi Mao; Jiacheng Chen; Ruchang Yao; Ziye Yuan; Jianmin Wu; Guangjun Xie; Dou Shen

arXiv · 2509.18189

Qianfan-VL: Domain-Enhanced Universal Vision-Language Models

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Abstract

We present Qianfan-VL, a series of multimodal large language models ranging from 3B to 70B parameters, achieving state-of-the-art performance through innovative domain enhancement techniques. Our approach employs multi-stage progressive training and high-precision data synthesis pipelines, which prove to be critical technologies for enhancing domain-specific capabilities while maintaining strong general performance. Qianfan-VL achieves comparable results to leading open-source models on general benchmarks, with state-of-the-art performance on benchmarks such as CCBench, SEEDBench IMG, ScienceQA, and MMStar. The domain enhancement strategy delivers significant advantages in OCR and document understanding, validated on both public benchmarks (OCRBench 873, DocVQA 94.75%) and in-house evaluations. Notably, Qianfan-VL-8B and 70B variants incorporate long chain-of-thought capabilities, demonstrating superior performance on mathematical reasoning (MathVista 78.6%) and logical inference tasks. All models are trained entirely on Baidu's Kunlun P800 chips, validating the capability of large-scale AI infrastructure to train SOTA-level multimodal models with over 90% scaling efficiency on 5000 chips for a single task. This work establishes an effective methodology for developing domain-enhanced multimodal models suitable for diverse enterprise deployment scenarios.

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Daxiang Dong, Mingming Zheng, Dong Xu, Bairong Zhuang, Wenyu Zhang, Chunhua Luo, Haoran Wang, Zijian Zhao, Jie Li, Yuxuan Li, Hanjun Zhong, Mengyue Liu, Jieting Chen, Shupeng Li, Lun Tian, Yaping Feng, Xin Li, Donggang Jiang, Yong Chen, Yehua Xu, Duohao Qin, Chen Feng, Dan Wang, Henghua Zhang, Jingjing Ha, Jinhui He, Yanfeng Zhai, Chengxin Zheng, Jiayi Mao, Jiacheng Chen, Ruchang Yao, Ziye Yuan, Jianmin Wu, Guangjun Xie, Dou Shen. 2025-09-19. Qianfan-VL: Domain-Enhanced Universal Vision-Language Models. https://arxiv.org/abs/2509.18189

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