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MiniMax H3 Video Length Is 15 Seconds. I Counted Ten Cuts Inside One of Them.

Blog post from Atlas Cloud

Post Details
Company
Date Published
Author
Atlas Cloud
Word Count
4,833
Company Posts That Month
70
Language
English
Hacker News Points
-
Post removed?
No
Summary

MiniMax H3 generates 4-to-15-second video clips at 24 FPS, up to 2K resolution with native stereo audio, but its stated durations map to a 17-frame grid, so most files run slightly longer than requested, with only the default 8-second setting landing exactly on a whole second. The central production argument is to budget by shots rather than clip length: prompts containing explicit timed shot descriptions and “CUT TO” instructions can produce several distinct scenes within one billed generation, with tests finding roughly three reliable shots—and in one case ten clean cuts—inside a 15-second clip. Videos longer than 15 seconds require manually chaining clips through final-frame-to-first-frame image-to-video generation or reference-to-video for new camera angles, followed by concatenation; this can preserve visual continuity but not a continuous audio bed, making dialogue and ambient sound key seam-management concerns. At a listed $0.14 per second, a 15-second generation costs $2.10, while packing three shots into it can reduce the effective cost per shot, although the author advises allowing for rejected attempts and using inexpensive four-second rehearsals.

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