4k Resolution Image Generation

via “multi-scale and high-resolution image generation up to 4k”

SANA: Efficient High-Resolution Image Synthesis with Linear Diffusion Transformer

Unique: Achieves 4K generation through combination of O(N) linear attention (avoiding quadratic memory scaling) and 32× DC-AE compression, enabling native high-resolution generation without tiling or upscaling post-processing

vs others: Generates native 4K images with linear memory scaling vs quadratic in standard transformers, and avoids upscaling artifacts present in models that generate at lower resolution then scale