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Why does the MiniMax H3 Image to Video node forces a 736 height for the 1280 width?

This story is from 2026-09-07. It is preserved in the archive; the latest stories are on the live feed.

I am trying to create a video for youtube, for the 1280 width, the height should be 720, as it is the 16:9 ratio. However, when I am using the "MiniMax H3 Image to Video" node, when I select width = 1280, the height is automatically 736, why is it? How should I select these settings if I am trying…

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Timeline · 3 reports

  1. 2026-09-08 21:19 · r/comfyui
    Why did the video automatically re-recale using MiniMax H3 Image to Video for 1344x768, but no such issue with 1056x608
  2. 2026-09-07 19:38 · r/comfyui
    How does dimension really work in the "MiniMax H3 Image to Video" node?
  3. 2026-09-07 16:45 · r/comfyui
    Why does the MiniMax H3 Image to Video node forces a 736 height for the 1280 width?

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