MiniMax H3
#3 in Video Generators
« An open-source video generator that combines text, images, video, and audio to produce 2K clips up to 15 seconds long, with native stereo sound generated in a single pass. API available
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Verified Tool
MiniMax H3 renders 2K video and its stereo soundtrack in a single pass, open weights included
MiniMax H3 is a multimodal video generation model that reads text, images, video and audio as one shared context, then returns a 2K clip with native stereo sound, up to 15 seconds long. Its weights sit on Hugging Face under a community license, a rare move at this level of quality. API billing is pay-as-you-go from $0.08 per second in 768p, no subscription attached. Shortly after launch, it took first place in video editing on the Artificial Analysis leaderboard.
Pros
- Picture and stereo soundtrack rendered together in one pass
- Up to 12 mixed reference files per generation
- Open weights downloadable from Hugging Face
- Localized edits requested in plain sentences
- Native 2K output up to 15 seconds
Cons
- Local runs call for well-equipped machines (64 GB RAM advised)
- Community license worth reading before commercial projects (territory clauses)
- Local rendering tops out at 768p, with 2K handled by a hosted step
Nine images, three clips, three audio tracks in a single brief
Each generation accepts up to 12 reference files: 9 images, 3 video clips and 3 audio excerpts, cited in the prompt by their order. You drop in a product photo, a clip for the camera move and a voice recording, type one instruction, and the scene comes back with dialogue, foley and room tone timed to the cut.
Under the hood, a single transformer) replaces the usual stack of specialist models for text-to-video, image-to-video, dubbing or editing. Edits are typed as sentences: swap a product, rewrite a sign, relight a shot from day to night, and the rest of the frame stays put.
| Reference type | Maximum per generation | What the model reads from it |
|---|---|---|
| Images | 9 (first 5 included) | Character identity, product, style |
| Video clips | 3, up to 15 s combined | Motion, camera work, editing rhythm |
| Audio tracks | 3, at no extra charge | Voice to carry over, soundscape |
Filmmaking test: how far the 2K output really goes
Running the model locally on an RTX 3060 with ComfyUI
MiniMax H3 open weights: 33 billion parameters on Hugging Face
H3-Base ships as a dense 33-billion-parameter checkpoint under the MiniMax H3 Community License. The minimum download weighs 42.5 GB, and the ComfyUI team reports it can run on a 12 GB card with dynamic offloading (budget around 64 GB of system RAM, and some patience at render time).
Locally, output lands at 768p on the short edge; the In-Context Regeneration step that lifts a clip to 2K stays hosted on MiniMax's side. At release it moved straight to the top of the open video models in public arenas, a jolt for the open source AI projects scene, where video had lagged far behind text.
Getting into MiniMax H3, from the Hailuo app to the API
The official API charges $0.13 per second at 2K and $0.08 at 768p, billed as you go. The first five reference images are included, each extra image adds $0.04, reference audio is free, and a reference video clip is billed at the output rate. MiniMax pegs its 2K rate below a third of what the leading closed models charge. Generative video pricing shifts quickly, so treat MiniMax's published grid as the only figure that counts.
No code required either: the model runs inside the Hailuo AI app, and hosts such as fal.ai double as a test bench. Prompts stretch to 7,000 characters, enough for a full shot list, sound directions included.
Frequently asked questions
Is MiniMax H3 free?
The weights are: anyone with suitable hardware can download them from Hugging Face at no cost. Hosted use is billed per second through the API, $0.13 at 2K and $0.08 at 768p, or goes through the Hailuo AI app. No subscription is required, you pay for what you generate.
Is MiniMax H3 the same as Hailuo 3.0?
Yes. MiniMax H3 is the official name, while Hailuo 3.0 (or Hailuo 03) is the nickname taken from the Hailuo AI app it runs in. One caution: the only official site is minimax.io, and domains that slip the model's name into their address are not official.
Can you run MiniMax H3 on your own PC?
Since the weights release, yes. The essential files come to a 42.5 GB download; ComfyUI says a 12 GB GPU can manage with dynamic offloading, provided roughly 64 GB of system RAM. Local renders come out at 768p, with the 2K upgrade going through the hosted regeneration step.
Can MiniMax H3 videos be used commercially?
In most cases, yes. The MiniMax H3 Community License permits commercial use of the weights for organizations under $20 million in revenue, attribution included, with territory clauses to check for your country. Clips made through the API or the app follow the platform's own terms.
Verdict: A leaderboard-grade model you can actually download does not come along often: ad teams, e-commerce shops and game studios get one pipeline from sound-on generation to sentence-level editing, with local rendering as a bonus for the well-equipped.
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