Stability AI breaks through technical barriers once again, launching the new Stable Diffusion 3.5 Medium model. This AI painting tool, designed for the general public, is not only completely free for commercial use but also achieves a perfect balance between high performance and accessibility.
This model, based on the Multimodal Diffusion Transformer (MMDiT-X) architecture, addresses the hardware threshold issue for ordinary users with its streamlined design of 2.5 billion parameters. It can run smoothly on most consumer-grade graphics cards with just 9.9GB of VRAM, truly realizing the vision of "available to everyone."
In terms of technological innovation, the model integrates three pre-trained text encoders and introduces QK normalization technology to enhance training stability. Notably, the dual attention module design in the first 12 transformer layers significantly improves image quality, layout effects, and understanding of complex prompts.
The training process combines synthetic data with carefully selected public data, employing a mixed training strategy with progressive resolution enhancement to ensure the diversity and quality of generated images. Compared to similar medium-sized models, it demonstrates significant advantages in image generation effects and processing speed.
However, users should be aware of some details during use: overly long prompts may cause imperfections at the edges of images; it is recommended to use skip-layer guidance sampling to optimize the structural integrity of images; also, due to differences in training data distribution, the same prompts may yield different creative effects.
The release of this model not only provides convenient AI creation tools for individual creators and startups but also reflects Stability AI's commitment to democratizing AI technology. Whether for artistic creation or educational development, it will bring the possibilities of AI creation to a wider user base.
Model download link: https://huggingface.co/stabilityai/stable-diffusion-3.5-medium
