diffusers stable-diffusion stable-diffusion-diffusers text-lsq speech-lsq1 dataset:recastai/LAION-art-EN-improved-captions arxiv:2305.15798 base_model:SG161222/Realistic_Vision_V4.0_noVAE base_model:finetune:SG161222/Realistic_Vision_V4.0_noVAE license:creativeml-openrail-m autotrain_compatible endpoints_compatible diffusers:StableDiffusionPipeline region:us