MiniMax H3 Video Outputs Reported as Grainy with Fine Detail Artifacts

FrankieB86 · reddit · 2026-08-05

Users running the MiniMax H3 model in ComfyUI are reporting quality issues. A developer noted that regardless of adjusting step counts, resolution, or save nodes, the video outputs consistently appear grainy.

Furthermore, when using reference images, the model struggles with fine details (like distant characters' eyes), producing significant artifacting. While upscalers like RTX Super Res or LTX Spatial Upscaler might alleviate compression noise, the community is still looking for a way to fix the underlying loss of detail.

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