NVIDIA's PiD decoder unifies image decoding and upscaling, beating SeedVR2
NVIDIA’s new Pixel Diffusion Decoder (PiD) replaces the traditional VAE decoder with a conditional pixel‑space diffusion model, merging decoding and upsampling in a single step. It can turn 512² latent images into 2048² pixels in under a second, delivering up to 5.9× speed‑up and higher visual quality than the SeedVR2 pipeline.