Nvidia drops an open-source tool to boost AI video to 4K
Nvidia just launched Open H3 Regenerate 2K, an open-source tool that redraws low-resolution video drafts at 2K and up to 4K in just three diffusion steps. Built primarily for MiniMax H3 but compatible with models like LTX-2, it gives creators full local control over high-res video refinement, though it may slightly alter fine facial details.