Updated: Sep 13, 2026
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Generation, training and LoRA distribution on Civitai are covered by Civitai’s own license agreement with MiniMax. If you download these weights and run them yourself, your use is instead governed by the MiniMax H3 Community License Agreement, whose grant excludes the European Union, the United Kingdom, the Republic of Korea and the United States of America.
MiniMax H3
VDN is a new attention system for MiniMax H3. It makes video generation much more efficient by keeping normal attention where it matters for nearby frames, while using a much cheaper linear attention mechanism for long-range information across the video.
INT8 ConvRot VDN stage checkpoint prepared for ComfyUI-VDN-H3-24GB node to use on custom PCs with 24Gb GPU.
In simple words, this adapter (model) and my ComfyUI node allow you to generate videos in 8 steps without turbo LORAs and get a quality close to the quality of the original model in 20 steps.
If you ask is it faster? I will definitely say yes, it is faster than generating 20 steps on the original model. But if you compare the generation time with generation using turbo LORAs, it will be a little slower, but the waiting time is worth it if you need quality. You can see the test results below.
How to use it:
download archive "stage-dmd-step-250-int8_convrot_comfyui" unzip it and put it in a directory ComfyUI/models/vdn/ full way should be ComfyUI/models/vdn/stage-dmd-step-250-int8_convrot_comfyui/. !!!do not change the names of the models!!!
Same model on HF: speach1sdef178/VDN-H3-INT8-ConvRot-ComfyUI · Hugging Face
The final local structure must be:
Required ComfyUI node https://github.com/Speach1sdef178/ComfyUI-VDN-H3-24GB
The node has been added to the ComfyUI Manager
24 GB-oriented MiniMax-H3 VDN runtime for ComfyUI. Version 1.1.0 keeps the validated v49 AutoMemory/AutoLongCache policy and adds three narrowly scoped correctness and memory-safety fixes tested on an RTX 3090 24 GB.
Example WF in the attached files
License: This model is a derivative of MiniMax H3 and is subject to the MiniMax H3 Community License Agreement.