UnifiedReward-2.0-qwen-3B

We are actively gathering feedback from the community to improve our models. We welcome your input and encourage you to stay updated through our repository!!

🔥🔥🔥 We release UnifiedReward-2.0-qwen-[3b/7b/32b/72b]. This version introduces several new capabilities:

1. Pairwise scoring for image and video generation assessment on Alignment, Coherence, Style dimensions.

2. Pointwise scoring for image and video generation assessment on Alignment, Coherence/Physics, Style dimensions.

Welcome to try the latest version, and the inference code is available at here.

Model Summary

UnifiedReward-2.0-qwen-3b is the first unified reward model based on Qwen/Qwen2.5-VL-3B-Instruct for multimodal understanding and generation assessment, enabling both pairwise ranking and pointwise scoring, which can be employed for vision model preference alignment.

For further details, please refer to the following resources:

• 📰 Paper: https://arxiv.org/pdf/2503.05236
• 🪐 Project Page: https://codegoat24.github.io/UnifiedReward/
• 🤗 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

🏁 Compared with Current Reward Models

Reward Model	Method	Image Generation	Image Understanding	Video Generation	Video Understanding
PickScore	Point	√
HPS	Point	√
ImageReward	Point	√
LLaVA-Critic	Pair/Point		√
IXC-2.5-Reward	Pair/Point		√		√
VideoScore	Point			√
LiFT	Point			√
VisionReward	Point	√		√
VideoReward	Point			√
UnifiedReward (Ours)	Pair/Point	√	√	√	√

Citation

@article{unifiedreward,
  title={Unified reward model for multimodal understanding and generation},
  author={Wang, Yibin and Zang, Yuhang and Li, Hao and Jin, Cheng and Wang, Jiaqi},
  journal={arXiv preprint arXiv:2503.05236},
  year={2025}
}