Spectrum Acceleration for MiniMax H3 in ComfyUI: Up to 34% Lower Inference Time
marres · reddit · 2026-08-04
A developer released a Spectrum acceleration node for the MiniMax H3 model in ComfyUI, significantly boosting inference speed by replacing expensive transformer evaluations with spectral feature forecasts.
- Performance: Tested at 0.5 MP, 8 seconds, and 20 steps, Euler sampling time decreased by 34.2% (1.52x speedup), and RES sampling time dropped by 29.6%.
- Quality: No visible or audible degradation was observed. The RES sampler automatically keeps its final three steps native to remove slight late-generation artifacts.
- Background: Based on a training-free Chebyshev spectral forecasting technique jointly proposed by Stanford University and ByteDance. The author has previously developed Spectrum integrations for WAN, FLUX, Qwen, and more.
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