ComfyUI tutorial: MiniMax H3 Speed LoRA cuts 20 steps down to 4
pixaromadesign · reddit · 2026-08-26
Pixaroma's ComfyUI tutorial (Ep32) accelerates MiniMax H3 video generation:
- Speedup: Speed LoRA plus optimized sampler settings cut generation from the standard 20 steps to 8 or even 4, balancing video/audio quality vs speed
- Setup: update ComfyUI and Pixaroma Nodes, install the MiniMax H3 Speed LoRA, configure the recommended shift value, and pick sampler/scheduler combos based on extensive testing
- Workflows: Text-to-Video, first-frame-to-video, first+last-frame-to-video, and speaking-character generation, showing how resolution, duration, steps and samplers affect speed and prompt adherence
- VRAM management: Monitor Pixaroma node tracks VRAM usage while Free VRAM auto-clears after generation; also demos using Gemini to quickly write detailed MiniMax H3 prompts
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