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MiniMax H3 Max guide
MiniMax H3 Max text to video
H3 Max Studio · last updated 3 September 2026
MiniMax H3 Max text to video turns one prompt into a 5 to 15 second clip with picture and stereo audio. Official ratios are 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16. On this studio every second costs 5 credits.
Official text-to-video inputs
Prompt, duration (5-15s), 480P or 768P, prompt expansion (balanced or quality), aspect ratio, optional seed, and the safety checker. Adaptive aspect is not a T2V option. If you need the shot to follow a still, switch to image to video.
How to write a T2V prompt
Put subject, camera, light, and sound in one field. Spoken lines go in quotes so H3 Max has something to lip-sync. Keep the beat count matched to duration: a 5-second draft is one action; a 15-second take can hold three beats.
Credits for text to video
Only duration is billed for a plain T2V job. 5s = 25 credits, 10s = 50, 15s = 75. Resolution does not change the studio rate.
How to run a MiniMax H3 Max text-to-video job
- Open the studio and keep Text / T2V selected.
- Write subject, camera, light, and sound in the prompt.
- Pick 5-15 seconds, 480P or 768P, and an official ratio.
- Generate. Preview muted by default, then turn sound on before you download.
FAQ
What aspect ratios work on MiniMax H3 Max text to video?
21:9, 16:9, 4:3, 1:1, 3:4, and 9:16. Adaptive is reserved for reference-to-video.
Can T2V include dialogue?
Yes. Write the line in quotes and describe the room and score in the same prompt.
Should I start at 5 seconds or 15?
Start at 5 seconds to test camera and sound, then spend a longer take once the prompt works.