New ComfyUI Sparse Attention Nodes Speed Up H3 Video Generation

New ComfyUI nodes bring sparse attention (keeping only 10%-30%) and memory optimization to H3 models, cutting memory use by about 30% and speeding up MiniMax video generation by up to 2.5x.

2026-08-21 ~ 2026-08-21 · 2 related posts

• Sparse attention node gives H3 Minimax in ComfyUI up to 2.5x speedup — Plague_Kind · 2026-08-21
• New Sparse Attention Nodes for H3 Model Boost Speed by 30% — Zironic · 2026-08-21