Tech Mar 18, 2026 8 min How to get ComfyUI running on Blackwell GPUs, and what can go wrong A guide to why ComfyUI fails on NVIDIA Blackwell (sm_120) GPUs and how to fix it with PyTorch Nightly, xformers removal, SageAttention, and NVFP4 quantization. ComfyUI NVIDIA GPU Blackwell Image Generation
