UnifiedReward-Think-qwen3vl-4b

Model Summary

UnifiedReward-Think-qwen3vl-4b is the first unified multimodal CoT reward model, capable of multi-dimensional, step-by-step long-chain reasoning for both visual understanding and generation reward tasks.

For further details, please refer to the following resources:

• 📰 Paper: https://arxiv.org/pdf/2505.03318
• 🪐 Project Page: https://codegoat24.github.io/UnifiedReward/think
• 🤗 Model Collections: https://huggingface.co/collections/CodeGoat24/unifiedreward-models-67c3008148c3a380d15ac63a
• 🤗 Dataset Collections: https://huggingface.co/collections/CodeGoat24/unifiedreward-training-data-67c300d4fd5eff00fa7f1ede
• 👋 Point of Contact: Yibin Wang

🚀 All inference code is provided at Github.

Citation

@article{unifiedreward-think,
  title={Unified multimodal chain-of-thought reward model through reinforcement fine-tuning},
  author={Wang, Yibin and Li, Zhimin and Zang, Yuhang and Wang, Chunyu and Lu, Qinglin and Jin, Cheng and Wang, Jiaqi},
  journal={arXiv preprint arXiv:2505.03318},
  year={2025}
}