MiniMax H3 AI Video Generator

Write one shot per prompt. Describe the subject, what it does, where it is, how the camera moves and how the scene is lit: "a lighthouse on a cliff during a storm, waves crashing below, slow aerial orbit, lightning in the distance, cold blue light". Specific nouns and verbs give the model more to work with than general adjectives.

The prompt can be up to 7,000 characters long. Use that room for precision about the one shot you want, not to describe several scenes. A sequence is better made as separate clips and joined in the AI video editor, or planned and generated for you by the video agent.

Camera terms make a clear difference: close-up, wide, aerial, tracking, dolly in, slow pan. Put the camera move near the start of the prompt if it is the point of the shot.

Light does more for the look of a clip than any style label. Name the source and the time of day, such as low winter sun, overcast noon, candlelight or neon signs at night, and say where it falls on the subject. A short colour note like "warm amber highlights, deep teal shadows" is easier to follow than the name of a film or a director.

Keep style words consistent and few. Two or three well chosen ones, for example "35mm film grain, shallow depth of field", give a clear direction; ten competing ones cancel each other out. When a result looks wrong, remove words before you add new ones.

With a first frame, the clip opens exactly on your picture: subject, composition and colours. With a last frame as well, MiniMax H3 animates from one picture to the other, which is the most reliable way to land a shot where you want it.

Keep both pictures the same size and shape, keep the subject in a similar position and describe the movement between them. Prepare images with the free image tools, for example the image cropper to set the frame before you upload. Remember that each uploaded image adds a little to the price.

Use 768p while you are still shaping the prompt. It costs less per second and shows you the framing, the motion and the timing. When a take works, render it again at 2K for the version you will publish.

2K is worth it when the clip will be seen large: a website header, a presentation on a projector, a trailer. For phone-first social video, 768p is often enough.

Whatever the resolution, judge a draft on its motion first. Sharpness can be bought later with a higher setting, but a camera move that goes the wrong way or an action that ends too early will look just as wrong at 2K.

MiniMax H3 offers 6s, 10s, 15s. Choose by the action: a gesture or a reveal fits the shortest length, a walk, a long camera move or a slow transformation needs more time. Because the price is per second, the duration is the setting that changes the cost most at a given resolution.

Longer clips also give the model more room to drift from the prompt. If a long clip goes wrong halfway, try two shorter clips joined in the editor instead.

For several clips that must look like one series, keep the same words for light, colour and camera in every prompt and change only the subject and the action. Starting each clip from images that share a look keeps characters and products consistent from shot to shot.

Review drafts at 768p side by side before rendering the finals at 2K. Fixing a prompt early is far cheaper than re-rendering a whole batch at full resolution.

On AgentReel a clip costs 12 to 49 credits without images, depending on resolution and duration; uploaded images add a small amount each. Every combination is in the table on this page, the Generate button shows the exact price before you spend anything, and a failed clip is refunded automatically.

Credits come from a plan or credit pack. Free credits cover Z-Image, video templates and Code to Video only, so this model needs paid credits. The credits and pricing guide explains how credits work.

The comparison table above lists every model in the generator. Among the models with a guide, Veo 3.1 goes up to 4K and always generates sound, Kling 3.0 has a sound switch and the most clip lengths, and Seedance 2.5, Seedance 2.0 and Wan 3.0 generate sound with every clip at up to 1080p.

MiniMax also makes Hailuo 2.3, which you can pick in the same AI video generator. The model overview lists every model with its price range.