MiniMax H3 – Overview and Specs

MiniMax H3 is the newest video model from MiniMax, the company behind the Hailuo video models. It came out on July 31, 2026.

H3 is a big jump from the Hailuo models before it. It makes sharper video, longer clips, and it adds sound by itself. You can try MiniMax H3 on OpenArt right now.

Key takeaways

• MiniMax H3 makes native 2K video at 24 frames per second.
• Clips run from 5 to 15 seconds in a single try.
• The model creates voice lines, sound effects, and background noise along with the picture.
• You can feed it up to 9 images, 3 video clips, and 3 audio clips to copy from.
• You can change a finished video just by typing what you want changed.

What is MiniMax H3?

MiniMax H3 is what MiniMax calls an omni-modal model. That means one single model reads all four kinds of input at once: your words, your pictures, your videos, and your sound files.

Older video models only read text and one picture. The name Hailuo 3.0 refers to the same model, so you will see both names online.

What MiniMax H3 can do

Make sharp 2K video with no upscaling step

H3 creates video at 2K straight out of the model. Older models made 768p or 1080p video, and you had to run it through an AI video upscaler to get it bigger. Video that starts at 2K holds up on a TV, a store screen, or a client's big monitor all fine.

Get sound in the same video, at the same time

H3 makes the sound while it makes the picture. You get voice lines, sound effects, and room noise, all lined up with what happens on screen. Words match the mouth, and a glass makes a crash sound right when it breaks.

Copy a character, a look, or a voice from your own files

You can upload up to 9 pictures, 3 short video clips, and 3 audio clips as examples. H3 will copy the face, the outfit, the art style, the way something moves, or the voice into your new video. Pair it with OpenArt Characters to keep the same person in every clip you make.

Fix a video by typing what you want changed

Once you have a video you like, you do not have to start over to fix one thing. Type something like "make the jacket red" or "slow down the walk," and H3 changes only that. It leaves the parts you already approved alone. H3 currently sits at number one for video editing on the Artificial Analysis leaderboard.

Make several shots inside one clip

H3 can put more than one shot in a single 15-second video. You can get an opening shot, a close-up, and an ending shot without gluing three separate videos together.

MiniMax H3 specs

Reference videos and audio clips must each be 2 to 15 seconds long, and they cannot add up to more than 15 seconds total.

How MiniMax H3 compares to older Hailuo models

Hailuo 02 was the physics model. It was good at real movement, like water splashing or a body falling, and it let you set both a first and a last picture. It made 6 or 10 second clips at 768p or 1080p.

Hailuo 2.3 came next and leaned toward art styles. It handles anime, illustration, ink painting, and game art well, and it costs less to run. But 1080p only works for 6-second clips on 2.3, and 10-second clips drop back to 768p.

Neither older model makes sound, and neither one lets you upload a pile of reference files or edit by typing.

So the short version is this. Pick MiniMax H3 when you need a finished video with sound, a longer clip, or the same character in shot after shot. Or you can still use Hailuo 2.3 if you want cheaper anime or illustration clips.

Try MiniMax H3 on OpenArt

MiniMax H3 is live in OpenArt's AI video generator. Pick MiniMax H3 from the model list, type what you want, and upload your reference files if you have them.

Write out the voice lines and sounds you want, because H3 makes audio too. Test your idea at 5 seconds first, then run the full 15 seconds once the look is right. That way you only pay for a long video when you know it works.