Model Hub

SANA 1600M Multilingual — NVIDIA Labs efficient text-to-image diffusion model with multilingual prompt support (including Chinese and emoji), producing high-resolution images via a linear-attention transformer and deep-compression autoencoder.

PixArt-Σ XL — diffusion-transformer text-to-image model that uses a weak-to-strong training scheme to generate high-fidelity 1024px images (scalable toward 4K) with strong prompt alignment and efficient compute.

PixArt-α XL — efficient diffusion-transformer text-to-image model producing photorealistic 1024px images with strong prompt following, trained at a small fraction of the cost of comparable diffusion models.

Flex.1 Alpha — Ostris 8-billion-parameter rectified-flow text-to-image model derived from FLUX.1-schnell, featuring a trainable guidance embedder that makes it highly flexible to fine-tune. Apache 2.0.

SANA 1600M 4K — NVIDIA Labs efficient text-to-image diffusion model that generates ultra-high-resolution images up to 4096×4096px using a deep-compression autoencoder and a linear-attention transformer for fast inference. BF16 weights.