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DeepSeek Janus-Pro-7B

Janus-Pro-7B is DeepSeek's open-source multimodal model from January 2025 — unifying image understanding and image generation in a single 7B architecture, MIT-licensed.

DeepSeek Janus-Pro-7B — explained in more detail

DeepSeek released Janus-Pro on January 27, 2025 as an improved version of the original Janus series. The family ships in 1B and 7B sizes. The architectural distinction: a decoupled SigLIP-L vision encoder that handles visual processing for understanding and generation separately — sidestepping a classic conflict in unified multimodal models. Training used a 1:1 ratio of synthetic to real data, which improved training speed, output quality and alignment.

Example / Practical use

On the MMBench multimodal-understanding benchmark, the 7B variant scores 79.2 — ahead of TokenFlow-XL (68.9), MetaMorph (75.2) and the predecessor Janus (69.4). On text-to-image generation, Janus-Pro-7B beats both DALL·E 3 (67%) and Stable Diffusion 3 Medium (74%) with 80% on GenEval. On DPG-Bench (dense instruction following) it reaches 84.19. Available under the MIT license on GitHub and Hugging Face — free to use, modify and ship commercially.

How it differs from similar concepts

Unlike pure language models such as DeepSeek V3 or R1, Janus-Pro is a dedicated multimodal model with a focus on imagery — comparable in intent to DALL·E 3 or Stable Diffusion, but as a unified model for understanding AND generation in a single piece.

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