Open-H3-Regenerate-2K gets a ComfyUI wrapper: 2-step noise 0.5 refines video to 2K
imlo2 · reddit · 2026-10-30
Developer o-l-l-i released an experimental ComfyUI wrapper for NVIDIA's Open-H3-Regenerate-2K, bundling the published merged adapters, Sharp curve branches and learned latent upscaler into a few nodes. Features include refining existing 24fps video or native MiniMax-H3 latents, adjustable noise, an upscale-only mode, memory controls, and longer clips via independent windows. A demo upscales 1344x768 to 2560x1440 in two steps at noise 0.5, adding texture though faces and small details may shift. Tested on RTX 5090 with 128GB RAM; likely runs on a 4090 with reduced settings. Example workflows and comparison images are included in the repo.
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