Skywork/Skywork-R1V2-38B

Skywork-R1V2

📖 R1V2 Report | 💻 GitHub | 🌐 ModelScope

1. Model Introduction

Skywork-R1V2-38B is a state-of-the-art open-source multimodal reasoning model, achieving top-tier performance across multiple benchmarks:

• On MMMU, it scores 73.6%, the highest among all open-source models to date.
• On OlympiadBench, it achieves 62.6%, leading by a large margin over other open models.
• R1V2 also performs strongly on MathVision, MMMU-Pro, and MathVista, rivaling proprietary commercial models.
• Overall, R1V2 stands out as a high-performing, open-source VLM combining powerful visual reasoning and text understanding.

🔧 Model Details

Model Name	Vision Encoder	Language Model	Hugging Face Link
Skywork-R1V2-38B	InternViT-6B-448px-V2_5	Qwen/QwQ-32B	🤗 Link

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2. Evaluation

Comparison with Larger-Scale Open-Source Models

Comparison with Proprietary Models

Model	Supports Vision	Text Reasoning (%)						Multimodal Reasoning (%)
		AIME24	LiveCodebench	liveBench	IFEVAL	BFCL	GPQA	MMMU(val)	MathVista(mini)	MathVision(mini)	OlympiadBench	mmmu‑pro
R1V2‑38B	✅	78.9	63.6	73.2	82.9	66.3	61.6	73.6	74.0	49.0	62.6	52.0
R1V1‑38B	✅	72.0	57.2	54.6	72.5	53.5	–	68.0	67.0	–	40.4	–
Deepseek‑R1‑671B	❌	74.3	65.9	71.6	83.3	60.3	71.5	–	–	–	–	–
GPT‑o1	❌	79.8	63.4	72.2	–	–	–	–	–	–	–	–
GPT‑o4‑mini	✅	93.4	74.6	78.1	–	–	49.9	81.6	84.3	58.0	–	–
Claude 3.5 Sonnet	✅	–	–	–	–	–	65.0	66.4	65.3	–	–	–
Kimi k1.5 long-cot	✅	–	–	–	–	–	–	70.0	74.9	–	–	–
Qwen2.5‑VL‑72B‑Instruct	✅	–	–	–	–	–	–	70.2	74.8	–	–	–
InternVL2.5‑78B	✅	–	–	–	–	–	–	70.1	72.3	–	33.2	–

Evaluation Results of State-of-the-Art LLMs and VLMs

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3. Usage

1. Clone the Repository

git clone https://github.com/SkyworkAI/Skywork-R1V.git
cd skywork-r1v/inference

2. Set Up the Environment

# For Transformers  
conda create -n r1-v python=3.10 && conda activate r1-v  
bash setup.sh  
# For vLLM  
conda create -n r1v-vllm python=3.10 && conda activate r1v-vllm  
pip install -U vllm

3. Run the Inference Script

transformers inference

CUDA_VISIBLE_DEVICES="0,1" python inference_with_transformers.py \
    --model_path path \
    --image_paths image1_path \
    --question "your question"

vllm inference

python inference_with_vllm.py \
    --model_path path \
    --image_paths image1_path image2_path \
    --question "your question" \
    --tensor_parallel_size 4

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4. Citation

If you use Skywork-R1V in your research, please cite:

@misc{chris2025skyworkr1v2multimodalhybrid,
      title={Skywork R1V2: Multimodal Hybrid Reinforcement Learning for Reasoning}, 
      author={Peiyu Wang and Yichen Wei and Yi Peng and Xiaokun Wang and Weijie Qiu and Wei Shen and Tianyidan Xie and Jiangbo Pei and Jianhao Zhang and Yunzhuo Hao and Xuchen Song and Yang Liu and Yahui Zhou},
      year={2025},
      eprint={2504.16656},
      archivePrefix={arXiv},
      primaryClass={cs.CV},
      url={https://arxiv.org/abs/2504.16656}, 
}

@misc{peng2025skyworkr1vpioneeringmultimodal,
      title={Skywork R1V: Pioneering Multimodal Reasoning with Chain-of-Thought}, 
      author={Yi Peng and Peiyu Wang and Xiaokun Wang and Yichen Wei and Jiangbo Pei and Weijie Qiu and Ai Jian and Yunzhuo Hao and Jiachun Pan and Tianyidan Xie and Li Ge and Rongxian Zhuang and Xuchen Song and Yang Liu and Yahui Zhou},
      year={2025},
      eprint={2504.05599},
      archivePrefix={arXiv},
      primaryClass={cs.CV},
      url={https://arxiv.org/abs/2504.05599}, 
}

This project is released under an open-source license.