🔥 Lance: Unified Multimodal Modeling by Multi-Task Synergy

💡 The paper introduces Lance, a unified multimodal model that combines understanding, generation, and editing capabilities for images and videos. The goal is to develop a model that can handle multiple tasks without relying on large model capacity or focusing on specific modalities like text or images. Lance achieves this through a dual-stream architecture and collaborative multi-task training, which enables joint context learning while separating the pathways for understanding and generation.

The model uses a mixture-of-experts architecture on shared multimodal sequences, allowing it to learn from both images and videos simultaneously. To address interference among different visual tokens, the model employs modality-aware rotary positional encoding, which helps to align tasks across different modalities.

During training, Lance uses a staged multi-task training paradigm with capability-oriented objectives and adaptive data scheduling. This approach strengthens both semantic comprehension and visual generation performance. The results show that Lance outperforms existing unified models in image and video generation while maintaining strong multimodal understanding capabilities.

Overall, Lance presents a practical approach to unified multimodal modeling, demonstrating that collaborative multi-task training and a dual-stream architecture can lead to improved performance in multiple tasks without requiring large model capacity. The model has the potential to be applied to various applications that require multimodal understanding, generation, and editing capabilities.

📅 Published on May 18

🔗 Links:
• GitHub: https://github.com/huggingface
• arXiv: https://arxiv.org/abs/2605.18678
• PDF: https://arxiv.org/pdf/2605.18678
• Project Page: https://lance-project.github.io/

🤖 Models citing this paper:
• https://huggingface.co/bytedance-research/Lance

🚀 Spaces citing this paper:
• https://huggingface.co/spaces/Nayefleb/Lance

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📢 By: https://xn--r1a.website/PaperNexus

#MultimodalModeling #MultitaskLearning #DualStreamArchitecture #MixtureOfExperts #UnifiedModelingApproach