VDN-H3 escapes the B200 cluster and lands in ComfyUI
A native ComfyUI node ports MiniMax-H3’s Video Delta Net to portable PyTorch, replacing datacenter-only FlashAttention and fused Triton kernels with consumer-GPU-compatible patches. The payoff is architectural: long-range video attention scales linearly with clip length, though this is still an experimental, VRAM-hungry route, not a way to reproduce the headline 74.5× speedup on an RTX 3090 Ti.