Simpler Diffusion (SiD2): 1.5 FID on ImageNet512 with pixel-space diffusion

Benchmark Model Rank Results
image-generation-on-imagenet-128x128SiD2FID: 1.26
image-generation-on-imagenet-256x256SiD2FID: 1.38
image-generation-on-imagenet-512x512SiD2FID: 1.48
video-prediction-on-kinetics-600-12-framesSiD2FVD: 2.3Cond: 5Pred: 11