nsistency Models unconditional image generation ControlNet text2image, image2image, inpainting ControlNet with Stable Diffusion XL text2image ControlNet-XS text2image ControlNet-XS with Stable Diffusion XL text2image Cycle Diffusion image2image Dance Diffusion unconditional audio generation DDIM unconditional image generation DDPM unconditional image generation DeepFloyd IF text2image, image2image, inpainting, super-resolution DiffEdit inpainti