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MiniMax H3 AI Video Generator

MiniMax H3 turns one prompt into a 2K scene people replay, voice, music and ambience included: the model Reddit ran on 5090s, no GPU needed.

MiniMax H3 AI Video Generator

395 creditsSign in to run this one
Examples

MiniMax H3 videos creators posted

The clips creators are posting from MiniMax H3 right now, each with the model named. Two of their exact prompts sit below, ready to run.

A night ride into a vortex

How creators work

Prompt MiniMax H3 the way its own guide says

The post that ended most "why is my dialogue gibberish" threads pointed to MiniMax's official prompt guide. Its four moves:

01

Describe the timeline in shots

Open with the style and framing, then add each cut as [Shot 2] At 00:03.500, the camera cuts to…

02

Tag every spoken line

Write the speaker, then the words as <d>[English] I get off at the next station.</d>, and drop in tags like <laughs> for the performance.

03

Give sound and music their own fields

overall_soundscape: for rain, footsteps and room tone; non_diegetic_music: for the score only the audience hears.

04

Match the length to the action

5 seconds for 395 credits, 6 for 475, 8 for 630, and a full 10-second scene for 790.

Access

Run MiniMax H3 online, no GPU required

One Reddit tester waited 500 seconds on an RTX 5090 for a single 720p clip, running the open MiniMax H3 weights in ComfyUI. Here MiniMax H3 runs on Kavel at 2K, straight from your browser, with nothing to download and no VRAM to budget.

A pop-up storybook unfolds a paper cave, a hoard of folded gold and a dragon that roars paper flames. Posted by @MayorKingAI, music box and roar written into the prompt.

Creative engine

MiniMax H3 on Kavel

2K
Every clip
5–10 s
Per run
With audio
Same pass

Text or an image in

Type the scene, or upload a still as the first frame; the clip keeps its aspect ratio.

A 2K clip with sound out

Voices, effects and score arrive with the video.

The price before you press

The credit cost shows on screen before anything is charged.

What people post about

Three things MiniMax H3 does best, according to Reddit

MiniMax H3 voices, songs and room tone in one run

"And the audio was made in the same output not stitched together in a second pass???" a Reddit reply asked. It was: this coastal walk carries her line, the waves and the seabirds from one prompt.

  • Put the exact spoken line in quotes and describe the voice before it
  • Give ambience its own paragraph: waves, wind, footsteps
  • Say "no background music" when you want only the voice

Hand-drawn characters inside real footage

A flat chibi sticker cooking in a photoreal kitchen was one of the most-upvoted posts of launch week. The tip under it: say which parts stay 2D. This crayon cloud works the same way.

  • Name the drawn element as the only 2D thing in the scene
  • Call everything else photorealistic
  • Describe the texture: crayon, chalk, dry brush

MiniMax H3 words that form on screen

MiniMax launched H3 on "accurate text and brand rendering". Creators push it with title reveals: a glacier cracks apart, the ice forms EXTINCTION, then it shatters.

  • Put the word in double quotes exactly as it should read
  • Say what it is made of: flame, ice, liquid ink
  • Give it an ending: it shatters, it burns out
Prompts

MiniMax H3 prompts you can copy

"prompt plz" sits under almost every good clip on Reddit. Here are the creators' own, word for word, beside the video each made.

Thermopylae on pottery

@MayorKingAI

One style line, one audio line, then four timed acts with a hard cut between each.

Ancient Greek red-figure pottery animation, 15 seconds, 16:9. Flat 2D style: matte black silhouetted warriors with fine terracotta line detail, solid terracotta-orange background, Greek meander border framing top and bottom, subtle glaze crackle texture. No voice, audio: epic war drums, bronze clashes, whistling arrows.

ACT 1 (0-4s): Narrow cliff pass. Leonidas and Spartan hoplites lock shields into a phalanx wall, lambda emblems visible, spears rising in unison. Slow lateral tracking shot.

ACT 2 (4-8s): Hard cut. Thousands of Persian arrows fly as black streaks across the terracotta sky, blotting it out. Spartans crouch under shields, arrows shattering on bronze. Low angle.

ACT 3 (8-12s): Hard cut. Frontal clash — Persian warriors crash against the shield wall, Spartan spears thrust over the rims, figures tangle in stylized profile combat. Dynamic push-in.

ACT 4 (12-15s): Hard cut. Leonidas stands alone among fallen warriors, spear raised. Camera pulls back revealing the entire scene is painted on a rotating ceramic amphora against a black museum background. Final drum hit.
Run this prompt

IGNITE in fire

@CharaspowerAI

A wide shot, a build-up and the word in quotes, then the blast.

Ultra cinematic wide shot: A vast field of burning embers stretches into darkness. Suddenly, an enormous wall of fire races across the ground, sending billions of glowing sparks into the air. The flames twist into a gigantic rotating fire vortex hundreds of feet high. Molten embers, smoke, and liquid fire spiral together, naturally forging the word "IGNITE" from blazing flames. The letters burn brighter and brighter before erupting into a colossal shockwave that fills the screen with fire and incandescent particles. Hollywood fire simulation, ultra-realistic VFX, blockbuster title reveal.
Run this prompt
What people say

What Reddit said the week MiniMax H3 landed

Public Reddit replies, quoted as written, each linked.

“

OK if this is what people are getting with basic prompts on the base version of the model this is the best video model ever and blows LTX 2.3 out of the water.

U
r/StableDiffusion
Compared

MiniMax H3 vs Seedance 2.0, Seedance 2.5, LTX 2.5 and FLUX 3

The rivals people set MiniMax H3 against most, and where it wins.

MiniMax H3 vs Seedance 2.0

MiniMax H3 nearly tied Seedance 2.0 in Arena's blind image-to-video votes. On Kavel a 10-second 2K clip costs about half a 720p Seedance 2.0 clip.

“For most of my tests, the results have been very similar to SD2.0”

See Seedance 2.0

MiniMax H3 vs Seedance 2.5

A tester ran a 30-second Seedance 2.5 prompt through H3 unchanged, not even in MiniMax format. An 8-second MiniMax H3 clip here costs a third of an 8-second 720p Seedance 2.5 clip.

“H3 is a beast. Im just floored what it can do.”

Run the same prompt on Seedance 2.5

MiniMax H3 vs LTX 2.5

Same animated prompt, both models, side by side; the top reply took four words.

“Minimax H3 way way better”

See LTX 2.5

MiniMax H3 vs FLUX 3

Testers who ran both on the same prompts told the audio apart with headphones on. A 10-second MiniMax H3 clip at 2K costs about three fifths of a 10-second 720p FLUX 3 clip.

“Minimax H3 absolutely DESTROYS Flux 3 in the audio department.”

See FLUX 3
FAQ

MiniMax H3 FAQ

What people ask most in MiniMax H3 threads.

You can start free: log in and Kavel adds free credits with no card to test ideas on Kavel's own video engine. MiniMax H3 runs on any paid plan or credit pack, with the cost shown before you generate.

Not here. Locally people wait minutes per clip on gaming GPUs; on Kavel MiniMax H3 runs on our side and the 2K clip lands in your browser.

It is priced by length: 395 credits for 5 seconds, 475 for 6, 630 for 8 and 790 for 10, always at 2K with sound. Failed runs are refunded automatically.

Copy a creator prompt above, or follow MiniMax's guide: [Shot] blocks on a timeline, spoken lines in <d>[English] … </d> tags, and separate overall_soundscape and non_diegetic_music fields.

Wrap each line in <d>[English] … </d> with the speaker named just before it, and keep the words short enough to fit the clip. Tags like <laughs> inside the line add the sound itself.

Each clip on Kavel runs 5, 6, 8 or 10 seconds. For a longer story, write 10-second shots and start each from a still of the last.

Yes. Upload a still and MiniMax H3 uses it as the first frame, keeping its aspect ratio while your prompt drives motion and sound.

Yes. MiniMax makes it, its model page points to the Hailuo AI app as the place to run it, and creators post it under both names.

Make your first MiniMax H3 clip

Skip the local render. Paste a proven prompt or your own scene and leave with a 2K clip and its soundtrack, from 395 credits. If a run errors on our side, the credits go straight back.