diffusers safetensors llama dfloat11 df11 lossless compression 70% size, 100% accuracy text-to-image arxiv:2504.11651 base_model:Wan-AI/Wan2.1-T2V-14B-Diffusers base_model:quantized:Wan-AI/Wan2.1-T2V-14B-Diffusers region:us
Small (<1GB)