Bifrost-1: Bridging Multimodal LLMs and Diffusion Models with Patch-level CLIP Latents
Han Lin, Jaemin Cho, Amir Zadeh, Chuan Li, Mohit Bansal
2025-08-12
Summary
This paper talks about Bifrost-1, a new AI system that combines the strengths of large multimodal language models (MLLMs) with diffusion models to generate high-quality images. It uses patch-level CLIP embeddings, which are detailed image representations, to connect the language model and image generation parts seamlessly.
What's the problem?
The problem is that integrating large language models with image generation models can be very costly in training, and previous methods often resulted in losing the language model's strong reasoning abilities because those models were not trained to understand images deeply. Also, existing approaches struggle to balance good image quality with efficient training.
What's the solution?
Bifrost-1 solves this by using patch-level CLIP latents, which align naturally with the visual system of the multimodal language model, enabling the language model to guide image generation precisely. The system adds a lightweight adaptation to the diffusion model to use these latents, and it keeps the original language model's parameters intact so its reasoning skills are preserved. This design allows the AI to create detailed images efficiently while still understanding and reasoning about the content well.
Why it matters?
This matters because it helps build AI that can both understand complex language and generate realistic images without needing expensive training or losing intelligence. This advancement can improve applications like interactive storytelling, design, and creative tools where AI needs to think and create visuals at the same time.
Abstract
Bifrost-1 integrates pretrained multimodal LLMs and diffusion models using patch-level CLIP embeddings to enable efficient high-fidelity image generation with strong multimodal reasoning.