H3 Video Settings: 8+3 Step Two-Stage Sampling Matches 20-Step Quality
SourceTraining7959 · reddit · 2026-09-22
Community thread on quality settings for the H3 video model. The OP shares a tested combo: 8 steps on res2m then 3 on euler with TaoMate speedup LoRA at 0.65 strength, matching 20-step resmultistep quality at roughly 12-step time cost (res2m's first step takes twice as long) while preserving the motion physics that speedup LoRAs usually degrade.
The OP invites others to share configs by use case (action/fast motion/dialogue), checkpoint (fl2va, ref2va, hybrids, singularity), samplers/steps, speedup LoRA usage, and latent upscalers; a settings screenshot is attached.
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