CodeGoat24/UnifiedReward-Think-qwen3vl-2b

VISIONConcurrent Unit Cost:1Model Size:2BQuant:BF16Context Size:32kTool Calling:SupportedPublished:Nov 18, 2025License:mitArchitecture:Transformer Open Weights Featherless Exclusive Cold

CodeGoat24/UnifiedReward-Think-qwen3vl-2b is a 2 billion parameter Qwen3VL-based model developed by CodeGoat24, serving as the first unified multimodal Chain-of-Thought (CoT) reward model. It specializes in multi-dimensional, step-by-step long-chain reasoning for both visual understanding and generation reward tasks. This model is designed to evaluate and provide feedback on complex multimodal reasoning processes.

Loading preview...

UnifiedReward-Think-qwen3vl-2b: Multimodal CoT Reward Model

UnifiedReward-Think-qwen3vl-2b is a 2 billion parameter model developed by CodeGoat24, distinguished as the inaugural unified multimodal Chain-of-Thought (CoT) reward model. This model is built upon the Qwen3VL architecture and is specifically engineered to provide multi-dimensional, step-by-step long-chain reasoning capabilities.

Key Capabilities

  • Unified Multimodal CoT Reward: It is the first model to integrate multimodal Chain-of-Thought for reward tasks, offering a comprehensive evaluation framework.
  • Visual Understanding Reward: Capable of assessing and providing feedback on visual comprehension tasks.
  • Generation Reward: Excels at evaluating the quality and reasoning of generated content, particularly in multimodal contexts.
  • Step-by-Step Long-Chain Reasoning: Designed to analyze and provide rewards based on complex, multi-step reasoning processes.

Good For

  • Evaluating Multimodal AI Systems: Ideal for developers and researchers looking to assess the reasoning capabilities of other multimodal models.
  • Reinforcement Learning with Human Feedback (RLHF): Can be used as a reward signal for training and fine-tuning multimodal large language models.
  • Research in Multimodal Reasoning: Provides a tool for understanding and improving complex reasoning chains in AI.

For more technical details, refer to the official paper and the project page.