Video GenerationActive
MiniMax H3 Highspeed Video Generator
byminimax
MiniMax H3 Highspeed generates 4-15s 768P videos from a prompt, with optional first and last frame images to control the opening and ending.
Overview
MiniMax H3 Highspeed is a MiniMax video generation model built for fast 768P clips. It takes a scene description and optional keyframe images, then generates a short MP4 video with stereo audio. It’s useful when you need a quick shot with a defined start or end frame.
What you can build
- Social clips from a single prompt, like product shots or travel B-roll
- Image-to-video animations that start from a provided first frame
- First-to-last frame transitions for simple story beats and shot continuity
- Short ad concepts and motion tests for editing timelines
- Vertical or square clips for different feed formats
Inputs
- A required written prompt that describes the scene, subject, motion, camera, and style. If you include speech in quotes, treat it as spoken dialogue on camera.
- A clip duration you choose as a whole number of seconds from 4 to 15.
- An output resolution preset. H3 Highspeed is typically delivered as 768P on hosted endpoints.
- An optional first-frame still image (PNG, JPG, or WEBP) that sets the opening frame. If you provide this, the video follows the image’s aspect ratio.
- An optional last-frame still image (PNG, JPG, or WEBP) that guides the final frame. This is most useful when you also provide a first frame.
- An optional aspect ratio setting for text-only generation. Common ratios include 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16.
Outputs
- One MP4 video clip at the requested duration.
- A 768P-class frame size, commonly generated at 24 fps.
- A stereo audio track (32 kHz). It may be silent unless you prompt for sound or dialogue.
Limitations
- Output length is limited to 4-15 seconds per run.
- H3 Highspeed targets 768P output and isn’t meant for 2K delivery.
- When you supply a first frame image, the output aspect ratio follows that image. Aspect ratio controls may be ignored in this mode.
- Keyframe control is limited to the start frame, end frame, or both. It’s not full shot-by-shot editing.
- Low-quality inputs can reduce control. Blurry images, heavy compression, text overlays, and watermarks can cause artifacts and shape drift.
Safety & compliance
- MiniMax applies automated moderation to prompts and uploaded media.
- Content that appears unlawful, pornographic, or rights-infringing may be blocked.
- Don’t upload copyrighted material, private images, or likenesses without permission.
Example prompts
Great starting points for h3 highspeed.
The surfer rides through the curling wave, carving along its face as the barrel closes behind him, spray glowing in the golden sunrise light, handheld water-level camera following the motion.Video Generation
The hummingbird hovers at the hibiscus with its wings beating in a fast blur, sips nectar for a moment, then darts away out of frame while the flower sways gently, soft morning light, macro shot.Video Generation
The waterfall pours steadily into the emerald pool, mist drifting and rising through the sunbeams, ripples spreading across the water, ferns swaying gently, slow upward camera tilt toward the top of the falls.Video Generation
The skateboarder pops a clean kickflip at the edge of the bowl, the board spinning beneath him before he lands on it and rolls away, warm sunset light and long shadows, low-angle camera tracking the trick.Video Generation
API quick start
Run h3 highspeed with a single API call.
{
"prompt": "The surfer rides through the curling wave…",
"inputImage": "https://your-cdn.com/input.png",
"duration": 5,
"resolution": "768P"
}curl -X POST "https://api.wiro.ai/v1/Run/minimax/h3-highspeed" \
-H "Content-Type: application/json" \
-H "x-api-key: YOUR_WIRO_API_KEY" \
--data-binary @- <<'JSON'
{
"prompt": "The surfer rides through the curling wave…",
"inputImage": "https://your-cdn.com/input.png",
"duration": 5,
"resolution": "768P"
}
JSON