Mirrored from: https://huggingface.co/Owen777/UltraFlux-v1

UltraFlux is a Flux-based Diffusion Transformer designed specifically for native 4K text-to-image generation, capable of maintaining consistent generation quality across a wide range of aspect ratios (square, portrait, ultra-wide, etc.).

It combines a 4K-optimized DiT backbone, a curated MultiAspect-4K-1M dataset, VAE post-training, and a 4K-aware objective function, enabling data, architecture, and loss functions to be co-designed rather than tuned in isolation.