MiniMax-H3-Motion-Adapter

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What MiniMax-H3-Motion-Adapter is

MiniMax-H3 motion adapter (pilot, r16) A rank-16 LoRA that makes the de-rope pass in ComfyUI-MAINodes behave better on fast motion. It needs that pass; it is not a general-purpose motion LoRA. What it looks like One 5 s clip, four ways. Every panel has its numbers burned in. poster="https://huggingface.co/MATLOWAI/MiniMax-H3-Motion-Adapter/resolve/main/assets/adaptert2cinsertquadposter.jpg" Watch the bottom two panels, not the stills. Without the adapter the fighters advance and snap, advance and snap, frame to frame. With it they keep moving. Rate 1.011 means the motion comes out at the speed the shot called for; 1.416 means the pass invented about 40 percent more movement than it should have. Two things this exhibit is not. It is not the adapter on its own: the stretched clock comes from the ComfyUI-MAINodes de-rope pass, and the adapter only changes how the model behaves once that pass has stretched it. Load this file on a plain text-to-video render and you get the costs listed below with none of the benefit. And the settings shown here are 0.75 / inject 0.30, the lower-invention cell; see "Settings that work" for when to prefer strength 1.0. How it is actually wired, and what the adapter is not responsible for Same clip, same seed, same graph in all four tiles. An anime sword ring, which is the content type it helps most. poster="https://huggingface.co/MATLOWAI/MiniMax-H3-Motion-Adapter/resolve/main/assets/adaptermagepinnedquadposter.jpg" The order matters, and it is the opposite of what people expect. The pins do most of the work, and they are free: pinning the window's boundary frames to the plate frames they must butt against is what stops the splice jump, adapter or no adapter. The adapter then converts spare capacity into smoothness on top of that. If your seams are jumping, pin first and only then reach for this file. The same tile also shows the cost honestly: warm colour goes 1.04 to -1.59 with the adapter on. That is the colour muting described below, visible in the one exhibit where everything else improves. Play to the end for a card listing every setting: window, hold map, denoise, sampler, seed, quantisation and wall time per tile. (It labels th

Summarised from the published model card. Read the full card on the HuggingFace links below.

Specifications

What it is

How it works

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Sizes & precisions

Open weights ship in several sizes and precisions. One page, all the variants — pick the one that fits your GPU. VRAM figures are estimates from model size.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys minimax-h3-motion-adapter for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (minimax-h3-motion-adapter below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/videos/generations \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"minimax-h3-motion-adapter","prompt":"a drone shot over a forest"}'

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