What is H3 Max AI?

H3 Max is a web-based AI video generator built on the MiniMax H3 Max video model. It converts a written prompt, a single start frame, or a reference set (up to nine images, three clips, and three audio files) into a 5 to 15 second clip that already carries synced audio. It is aimed at commercial video work such as ads, brand films, product spots, UI motion, and game cinematics, with output options from 480P drafts up to 1080P.

How to use H3 Max AI?

1. Describe the shot in one sentence, or upload a start frame (and optionally an end frame) to pin the opening and landing. 2. Set clip length (5–15 seconds), resolution (480P, 768P, or 1080P), and one of six aspect ratios. 3. Generate the take — audio renders natively with the video. 4. Review the result, adjust a word or a layer in the prompt, and run the next take. Starter credits are available before upgrading.

Core features of H3 Max AI

Text-to-video and image-to-video generation from a prompt or single still frame
Native synced audio in every clip, with dialogue stable in 11 languages
Clip length control from 5 to 15 seconds
Resolution tiers: 480P for drafts, 768P (1344×768, 24 FPS) and 1080P for keepers
Six aspect ratios from 21:9 to 9:16
Reference to Video with up to nine images, three clips, and three audio files
Optional first and last frame pinning to control motion between
Camera controls, lip sync, and text/brand rendering that survives the render