MiniMax H3: The AI Video Generator for Advertising Teams
Turn one campaign brief into a dozen broadcast-ready ad cuts, each with its own camera move, voiceover, and soundtrack, without touching a timeline.
Overview
Why agencies are testing MiniMax H3 for advertising
A single 30-second commercial concept usually needs a 16:9 broadcast cut, a 1:1 feed version, a 9:16 story version, and a handful of tone variants for client review. MiniMax H3 treats that whole set as one omni-modal job: text, reference images, reference video, and reference audio all sit in the same context, so the product, the talent, and the brand voice stay consistent while the camera move, pacing, and music change. Because every clip renders at 2K with native stereo audio already mixed in, a variant is a finished ad, not a silent draft waiting on a sound pass.
MiniMax H3 launched July 31, 2026 as open weights, and this site runs it for free with no account or credits screen standing between a brief and a clip. Feed it up to nine images, three video clips, and three audio references per generation, write prompts as long as 7,000 characters describing exact blocking and dialogue, and pick from text-to-video, first-and-last-frame, reference-to-video, or natural-language editing depending on how much of the shot already exists.
Why MiniMax H3
What actually changes in the ad workflow
Variant generation replaces re-shoots
Instead of booking a second shoot day for a client note, describe the new camera angle, energy level, or line reading in a fresh prompt against the same references. MiniMax H3 for advertising means the hero shot, the product beauty pass, and the CTA end-card all come from the same source material.
Sound design is never an afterthought
Every MiniMax H3 video ships with stereo score, room tone, and foley already placed against the picture, and a reference voice track carries a spokesperson real cadence into the generated line. Ads stop feeling like silent footage with music slapped on in editing.
Seven aspect ratios from one brief
21:9, 16:9, 4:3, 1:1, 3:4, 9:16, and an adaptive mode all come out of the same reference set, so a placement plan for TV, a feed, and a story does not mean re-briefing three different teams or re-shooting three different masters.
Workflow
From brief to broadcast cut
Advertising AI video work here follows the same four moves whether it is a hero spot, a cutdown, or a client-note revision: reference, describe, generate, iterate.
- 1
Load brand references
Upload product shots, packaging, previous campaign stills, or a short clip of the actor or spokesperson. These anchor identity across every variant so the product and talent read as the same brand every time.
- 2
Write the shot in detail
Describe camera movement, lighting, pacing, the line being delivered, and the mood of the music bed in one prompt, up to 7,000 characters, rather than splitting direction across separate visual and audio tools.
- 3
Generate the full cut
A 15-second 2K clip with stereo audio typically finishes in about 100 seconds, fast enough to hold three or four directions in a single review call instead of waiting overnight for each option.
- 4
Iterate with plain language
Use natural-language editing to ask for a slower push-in, a warmer grade, or a different tagline read on the same generation, keeping the parts of the ad the client already approved untouched.
Prompts
Sample advertising prompts
Two starting points, one broadcast-style hero spot and one square feed cutdown, showing how much direction MiniMax H3 can hold in a single prompt.
Slow dolly-in on a matte black skincare bottle rotating on a marble podium, studio key light raking across the glass from camera left, soft rim light separating it from a deep navy background. A warm female voiceover delivers the line this is the last step you will ever add, timed to land as the bottle stops turning. Underscore is a minimal piano motif that swells on the final word, with a soft glass clink as foley.
Static tabletop shot, overhead camera looking straight down at a coffee cup being filled in one continuous pour, steam curling upward, warm morning light from a window just out of frame. No dialogue, just the sound of pouring liquid, a ceramic mug set down, and a low ambient cafe room tone underneath a light acoustic guitar loop that fades in on the second beat and cuts cleanly at fifteen seconds.
Try it
Generate your opening frame
The tool below renders the opening frame of your ad as a still first, so you can confirm framing, product placement, and lighting before spending a full generation on the finished 2K clip.
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FAQ
Advertising FAQ
Yes. Upload the product from multiple angles as reference images, up to nine per generation, and MiniMax H3 holds its shape, label, and color across every camera move and cutdown you generate. This matters for advertising specifically, since a client will reject a spot the moment the packaging looks even slightly off from the approved hero shot, and identity drift is the fastest way to lose a review.
Every clip includes native stereo audio by default, meaning dialogue, a score, foley, and room tone are generated together with the picture rather than added afterward. Supply a reference recording of a spokesperson and MiniMax H3 carries the real voice and cadence into the new line, so a 15-second spot arrives finished rather than as silent footage waiting on a separate audio pass in another tool.
Individual clips run 5 to 15 seconds at 24 FPS, which covers a bumper, a cutdown, or a single scene within a longer commercial. For a full 30-second spot, generate the sequence in scene-length pieces using the same reference set for continuity, then assemble the pieces, since MiniMax H3 is built for shot-level generation rather than one continuous multi-scene timeline.
Explore
Start your next campaign variant
MiniMax H3 is free to use here, with no account, no credits, and no dashboard standing between a brief and a finished, sound-mixed ad clip. Load references, write the shot, and generate a 2K variant in about the time it takes to get coffee.
Ready to generate 2K video?
Experience the unified context, native audio, and open-weights freedom of MiniMax H3 today.