MiniMax H3 is a general-purpose multimodal video model built around four things: 4 to 15 second clips, 2K output, mixed reference input, and precise editing. Images, video, and audio go into a single request together. H3 reads the characters, motion, emotion, camera language, style, and creative intent inside each reference, then fuses them into one coherent audiovisual scene rather than raw material you still have to assemble. Editing is the other half of the model. Point at a character, object, scene, sound, or the pacing itself and H3 changes exactly that, following detailed instructions while leaving everything else intact — so you iterate on existing footage instead of re-rolling the whole shot. That combination suits real commercial production: advertising, brand films, e-commerce, short drama, and game content. H3 composes subtitles, brand marks, and UI elements as part of the design rather than pasting them on top, which is where it ranks strongest against other models.