AI product Open source
A ComfyUI acceleration extension for the native MiniMax H3 audio-video model. It reduces expensive transformer evaluations during sampling by retaining the packed hidden state after actual transformer steps, then using Chebyshev ridge regression to forecast that state on selected forecast steps. Forecast steps skip the H3 transformer blocks and continue through the native output and sampler path, with adaptive scheduling, sampler-aware safeguards, CPU/VRAM history storage, and native fallbacks. Spectrum is a training-free approximate accelerator: forecasted states alter the denoising trajectory, so outputs can differ from native H3 even with the same seed and workflow.
1 use taken from transcripts — each links to the moment in the video.
Speeds up Minimax H3 video generation in ComfyUI by predicting intermediate hidden features with a Chebyshev ridge model while still running the real output heads.
1 in the library.