Janus-Pro is a novel autoregressive framework that unifies multimodal understanding and generation.
It addresses the limitations of previous approaches by decoupling visual encoding into separate pathways, while still utilizing a single, unified transformer architecture for processing. The decoupling not only alleviates the conflict between the visual encoder’s roles in understanding and generation, but also enhances the framework’s flexibility.
Janus-Pro surpasses previous unified model and matches or exceeds the performance of task-specific models.
The simplicity, high flexibility, and effectiveness of Janus-Pro make it a strong candidate for next-generation unified multimodal models.
Janus-Pro is a unified understanding and generation MLLM, which decouples visual encoding for multimodal understanding and generation.
Janus-Pro is constructed based on the DeepSeek-LLM-1.5b-base/DeepSeek-LLM-7b-base.
For multimodal understanding, it uses the
SigLIP-L
as the vision encoder, which supports 384 x 384 image input. For image generation, Janus-Pro uses the tokenizer from
here
with a downsample rate of 16.
@misc{chen2025januspro,
title={Janus-Pro: Unified Multimodal Understanding and Generation with Data and Model Scaling},
author={Xiaokang Chen and Zhiyu Wu and Xingchao Liu and Zizheng Pan and Wen Liu and Zhenda Xie and Xingkai Yu and Chong Ruan},
year={2025},
}
6. Contact
If you have any questions, please raise an issue or contact us at
[email protected]
.
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