Model ID

MiniMax-H3

Calling method: async

MiniMax-H3 API Usage Guide

Overview

MiniMax-H3 generates videos from text prompts and optional image, video, or audio references. It supports text-to-video, first/last-frame image-to-video, and reference-to-video generation.

Submit a Request

{
  "model": "MiniMax-H3",
  "payload": {
    "prompt": "A cinematic view of a spacecraft launching at sunset",
    "resolution": "2K",
    "duration": 5,
    "ratio": "16:9"
  }
}

Supported Inputs

prompt: required text prompt, up to 7000 characters.
first_frame_image and last_frame_image: frame image URLs.
reference_images: up to 9 reference images.
reference_videos: up to 3 reference videos.
reference_audios: up to 3 reference audio files; audio cannot be used alone.

Frame-based inputs and reference-media inputs cannot be mixed in the same request. MiniMax performs final validation.

Output

Completed requests return a permanent video URL and generated thumbnail in the request outcome.