diffusers safetensors stable-diffusion sdxl lightning fluetnly-xl fluently trained text-to-image dataset:ehristoforu/midjourney-images dataset:ehristoforu/dalle-3-images dataset:ehristoforu/fav_images base_model:ByteDance/SDXL-Lightning base_model:finetune:ByteDance/SDXL-Lightning license:other autotrain_compatible endpoints_compatible diffusers:StableDiffusionXLPipeline region:us