tutorials/video/minimax/minimax-h3

[giscus[bot]]

tutorials/video/minimax/minimax-h3

Learn how to use the open-weights MiniMax H3 in ComfyUI with native workflows for text-to-video, image-to-video, and reference-to-video, all with native stereo audio.

https://docs.comfy.org/tutorials/video/minimax/minimax-h3

[psyantyst]

Thank you for this tutorial. The T2V comfyui workflow requires the MiniMaxH3ImageToVideo node, which I cannot find anywhere. I tried installing missing nodes and custom node packages for MiniMax, but none of them included that missing node. Where can I find it or with which other node can I replace it? Thanks!

[comfyui-wiki]

Hi! The MiniMaxH3* nodes (including MiniMaxH3ImageToVideo) are built-in ComfyUI nodes, not custom nodes - they ship with ComfyUI core in comfy_extras/nodes_minimax_h3.py. That is why ComfyUI-Manager's "Install Missing Nodes" cannot find them: they are part of the main app, not a custom node package.

MiniMax H3 support was added to ComfyUI on Aug 3, 2026 (PR #15224), so please update your ComfyUI installation to the latest version and restart it:

If you installed ComfyUI from source (git): run git pull, then restart the server.
If you use the desktop app: update it from the app's update menu.
After updating, open the node search and type "MiniMax" - you will find MiniMaxH3TextToVideo, MiniMaxH3ImageToVideo, MiniMaxH3ReferenceToVideo and the other built-in nodes. No need to install anything extra.

Make sure your ComfyUI build is newer than Aug 3, 2026, otherwise the nodes will not be there.

[psyantyst]

Thank you, that solved the issue. I was reluctant to update comfyui as sometimes configurations break, but this time it solved my issue with the missing node.

[Max1gp888]

Hi I have a msi 16 ram and 6gd rtx3050 graphics card is there anyway I would be able to run minimax h3 via ComfyUI on my system, is there anything to download that would force it to use less ram, something I can download with the manager that can speed up generation times and upscale the resolution after the generation has been done?