All H3 reference notes
Mode selection

First frame or first-and-last frame?

Answer

Use First/Last-Frame Image-to-Video with one image to animate away from a controlled start. Use two images when both endpoint compositions matter and H3 must create the transition.

Try this sequence
  1. Define the exact opening state.
  2. Decide whether the final composition is also non-negotiable.
  3. If yes, supply both frames and describe only the path between them.
Plan this workflowOpen MiniMax sourceVerified against MiniMax docs / Aug 5, 2026