FULL STORY
ComfyUI Workflows Evolve to Speed Up and Upscale MiniMax H3
Developers first sped up MiniMax H3 video generation 12x with a low-res-plus-upscale ComfyUI workflow, then cut VRAM needs via LTX 2.3, with native upscaling node support arriving in mid-August.
2026-08-04 ~ 2026-08-16 · 3 episodes · 8 posts
Episode 1 · New ComfyUI Workflows Boost MiniMax Video Generation Speed by 12x (2026-08-04, 3 posts)
Developers have introduced optimized ComfyUI workflows for the MiniMax H3 video model that increase generation speed by 12x. By initially generating at 480p and upscaling by 2x, this approach achieves near-native 1080p quality while drastically reducing rendering time.
- ComfyUI Workflows Boost MiniMax H3 Video Generation by 12x — lumos_ai · 2026-08-04
- Minimax Workflow: Generate 480p and Upscale with FlashVSR for Faster Results — ajrss2009 · 2026-08-05
- MiniMax H3 Video Model: High-Res Renders Nearly Identical to Low-Res, Revolutionizing Workflow — Far-Solid3188 · 2026-08-05
Episode 2 · MiniMax H3 Combined with LTX for Low-VRAM Video Upscaling (2026-08-07, 3 posts)
Developers have shared a new workflow combining the MiniMax H3 video model with LTX 2.3 upscaling technology. This approach allows users to generate videos and enhance their resolution, effectively cleaning up low-resolution renders, especially in low-VRAM environments.
- Minimax H3 + LTX Upscale: Low-VRAM Video Enhancement Workflow — AniZeee · 2026-08-07
- Looking for Workflows to Upscale MiniMax H3 Videos Using LTX 2.3 — Existing_Earth9000 · 2026-08-08
- MiniMax H3 Combined with LTX Upscaling: High-Res Video Workflow Shared — alisitskii · 2026-08-08
Episode 3 · MiniMax H3 Integrated into ComfyUI Upscaling Workflows (2026-08-15, 2 posts)
Developers released a node branch supporting MiniMax H3 for Ultimate SD Upscale in ComfyUI, fixing native compatibility issues. New workflows for upscaling and refining MiniMax H3 video outputs were also shared alongside comparative tests.
- Minimax H3 & LTX 2.5 Upscaler Workflows Benchmarks — Support_Marmoset · 2026-08-15
- MiniMax H3 integration with ComfyUI USDU workflow benchmarked — alisitskii · 2026-08-16