One checkpoint steers H3 video: Alibaba's ControlNet-Union covers Canny, depth, pose, and inpaint
Alibaba's MiniMax-H3 Fun ControlNet-Union packs five conditions (Canny, depth, HED, MLSD, pose) plus video inpainting into a single checkpoint, so creators stop swapping weights per video-to-video job. Guidance-distilled, it runs one forward pass per step with zero classifier-free guidance. It hooks into only 5 of H3's 50 transformer layers via zero-gated projections, keeping control cheap without nuking quality.