A 50-second talking AI character, fully local on one RTX 5090 with MiniMax H3
Loud-Goose2121 · reddit · 2026-10-02
A creator built a 50-second talking AI character (a fictional 74-year-old NYC hotelier) entirely locally on one RTX 5090 using open-weight MiniMax H3 in ComfyUI. Key workflow details: reference-to-video at 768x1344/24fps, cut from multiple 6-9s generations since longer windows drift; per-shot consistency via a fixed reference set (face, profiles, outfit, location) plus matching start/end frames for clean cuts; lip-sync by feeding the finished voice track into each generation.
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