MiMo-VL-7B: Xiaomi's Advanced Vision-Language Model Elevating Multimodal AI Reasoning

 Xiaomi has unveiled MiMo-VL-7B, a cutting-edge vision-language model (VLM) that combines compact architecture with exceptional performance in multimodal reasoning tasks. Designed to process and understand both visual and textual data, MiMo-VL-7B sets a new benchmark in the field of AI.

Innovative Architecture and Training

MiMo-VL-7B comprises three key components:

• A native-resolution Vision Transformer (ViT) encoder that preserves fine-grained visual details.

• A Multi-Layer Perceptron (MLP) projector for efficient cross-modal alignment.

• The MiMo-7B language model, specifically optimized for complex reasoning tasks.

The model undergoes a two-phase training process:

1. Four-Stage Pre-Training: This phase includes projector warmup, vision-language alignment, general multimodal pre-training, and long-context supervised fine-tuning (SFT), resulting in the MiMo-VL-7B-SFT model.

2. Mixed On-Policy Reinforcement Learning (MORL): In this phase, diverse reward signals—such as perception accuracy, visual grounding precision, logical reasoning capabilities, and human preferences—are integrated to produce the MiMo-VL-7B-RL model.

Performance Highlights

MiMo-VL-7B demonstrates state-of-the-art performance in various benchmarks:

• Excels in general visual-language understanding tasks.

• Outperforms existing open-source models in multimodal reasoning tasks.

• Exhibits exceptional GUI understanding and grounding capabilities, rivaling specialized models.

Notably, MiMo-VL-7B-RL achieves the highest Elo rating among all evaluated open-source vision-language models, ranking first across models ranging from 7B to 72B parameters.

Accessibility and Deployment

Xiaomi has open-sourced the MiMo-VL-7B series, including both the SFT and RL models, making them available for the research community and developers. The models are compatible with the Qwen2_5_VLForConditionalGeneration architecture, facilitating seamless deployment and inference.

Conclusion

MiMo-VL-7B represents a significant advancement in vision-language modeling, combining compact design with high performance. Through innovative training methodologies and open-source availability, Xiaomi contributes to the broader AI community's efforts in developing sophisticated multimodal systems.