New · MiniMax video

MiniMax H3 Max AI Video Generator

Turn a prompt or still image into an aesthetic, coherent video with stronger instruction following. Direct the opening and closing frames, choose 5–15 seconds, and render at 480p or 768p.

Generate with H3 Max Open classic generator

5–15 seconds480p or 768pText, image, first + last frame

Stronger prompt adherence

Balanced prompt expansion helps H3 Max follow motion, camera, composition, and style directions.

Better aesthetics

Post-training improves visual polish while preserving motion coherence and subject detail.

Flexible starting points

Generate from text, animate one image, or guide the complete transition with first and last frames.

Example videos

See what H3 can create

Official MiniMax H3 examples, mirrored to imageat's CDN for fast, stable playback.

Reference-aware motion

Precise visual edits

Stable text and graphics

Cinematic aesthetics

Brand film

Character storytelling

How it works

Three ways to direct a shot

Text to video: describe the subject, action, lighting, style, and camera movement.
Image to video: upload a composition and prompt the motion you want to see.
First and last frame: anchor both ends of the clip for a controlled transition.

Generation controls

Duration: 5–15 seconds
Resolution: 480p or 768p
Prompt expansion: Balanced by default
Safety checker: Enabled

MiniMax H3 Max API

Ship video generation with one JSON request

Use the unified imageat video endpoint with model ID minimax-h3-max. The API returns a task ID; poll the status endpoint until the final CDN URL is ready.

Endpoint: POST /v1/videos

Authentication: Bearer API key

Output: asynchronous MP4 URL

Credits: 2/sec at 480p · 3/sec at 768p

Create an API key

cURL · text to video

curl -X POST "https://imageat.com/api/v1/videos" \
+  -H "Authorization: Bearer $IMAGEAT_API_KEY" \
+  -H "Content-Type: application/json" \
+  -d '{
    "model": "minimax-h3-max",
    "prompt": "A white kitten chases a butterfly through a sunlit garden",
    "duration": "5s",
    "resolution": "768p",
    "aspectRatio": "16:9",
    "generateAudio": false
  }'

Text to video

Send prompt, duration, resolution, and aspectRatio.

Image to video

Add imageUrl; the output framing follows the source image.

First + last frame

Send firstFrameUrl and lastFrameUrl to direct the transition.

MiniMax H3 Max FAQ

What is MiniMax H3 Max?

MiniMax H3 Max is a post-trained MiniMax H3 variant tuned for stronger prompt adherence, improved aesthetics, and efficient inference without reducing output quality.

Can MiniMax H3 Max animate an image?

Yes. Upload a first-frame image and describe the motion. You can also add an end image to direct a first-to-last-frame transition.

How long can videos be?

You can generate clips from 5 to 15 seconds at either 480p or 768p.

Which aspect ratios are available?

Text-to-video supports 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16. Image-based generations follow the source image.

Create your first H3 Max video

Free signup. Pay only for the seconds you generate.

Open generator