MiniMaxMiniMax H3 Fast API
MiniMax H3 in seconds, not minutes — an accelerated build of the open weights
per second of video · 480P
With Max: from $0.034/s →Operational99.94% uptime (30 days)median 14sTry MiniMax H3 Fast
Runs on your balance at the price shown on the button. Results are saved to your account.
Output frame shape.
Output resolution. Higher resolutions cost more per second.
Length of the generated clip in seconds (4–15s). You pay per second.
If set to true, the safety checker will be enabled. Content our Acceptable Use Policy prohibits stays blocked either way.
Create a free account with Google or email — pay only for what you generate.
Your video will appear here
Write a prompt, pick your settings and hit Run. You only pay for successful generations.
Made with MiniMax H3 Fast
A street dancer spins and freezes on a wet basketball court at night, puddles splashing under his sneakers, low tracking shot, crowd cheering over a bass-heavy beat
Close-up of an old fisherman on a harbour pier laughing as the first raindrops fall, warm lantern light on his weathered face; he looks up and says “Here it comes!”, gentle rain and gulls
A neon sign that reads “OPEN LATE” flickers to life above a rainy noodle-shop door, steam drifting past, slow push-in, buzzing neon hum and rain on the awning
Red silk slides in slow motion off a white marble statue in a dark studio, folds rippling and catching a single beam of light, a soft whoosh
FPV drone dive through a misty pine-forest canyon at sunrise, skimming a river and banking between the trunks, wind rushing past
A young barista slides a latte across the counter, smiles at the camera and says “One oat flat white — enjoy!”, café chatter and an espresso machine hissing
A golden retriever leaps to catch a frisbee on a sunny beach in slow motion, sand and sea spray flying, a happy bark
A white running shoe turns slowly on a glossy black pedestal as neon light sweeps across it, the word “VELOCITY” glowing on the wall behind, deep electronic pulse
A paper boat drifts down a rain-filled gutter at dusk, the patter of rain and a distant tram bell
A street dancer spins on a wet basketball court at night, puddle splashes, low tracking shot, crowd cheering
Close-up of an old fisherman laughing as rain begins, warm harbour lights, he says “Here it comes!”
MiniMax H3 vs MiniMax H3 Fast
Same prompts and settings, generated through our API on Oct 18, 2026. Median 7.6× faster: 2m 08s → 17s per clip.
“A street dancer spins and freezes on a wet basketball court at night, puddles splashing under his sneakers, low tracking shot, crowd cheering over a bass-heavy beat”
8 prompts · same settings on both sides
Use ← → to switchGenerated 2026-10-18 through CheaperGen's own routes, the ones our API uses for these settings: MiniMax H3 through its official-model channel, H3 Fast on optimized GPU inference for open-source models. Both sides got the same prompt and settings (768P, 6 s, audio on, prompt rewriting off) and were submitted at the same moment. Times run from submitting the request to a downloadable clip, as a customer would see them. H3 Fast used seed 1018; MiniMax's H3 API takes no seed, so the clips are independent samples of the same prompt. Clips are shown as delivered, without re-encoding.
What is MiniMax H3 Fast?
MiniMax H3 Fast is an inference-accelerated build of MiniMax H3's open weights: the same text, frame and reference inputs and a synchronized soundtrack, at 480P or 768P, returned many times faster and for a fraction of H3's price.
An inference-accelerated build of MiniMax H3's open weights, served on our own GPU inference for open-source models. The acceleration is not a MiniMax release, and MiniMax does not sell this variant.
The original: MiniMax H3 — choose it when you need MiniMax's own output or its higher tiers.
How it is faster
- Same H3 open weights and inputs: text, first / last frame, or references
- Low-precision attention and kernels, plus post-training for fewer, faster sampling steps (exact recipe not published)
- Served warm on GPUs that already hold the model, and returned in the same request
- Up to 768P (no 2K) and 4–15 s; output can differ from MiniMax's own H3 API for the same prompt
Built on MiniMax H3's open weights, released by MiniMax. Use is subject to MiniMax's usage policy and our Terms of Service.
H3, accelerated
H3 Fast runs MiniMax H3's open weights on our own GPU inference for open-source models: low-precision attention and kernels and fewer sampling steps, on GPUs that are already warm. A 6-second clip comes back in well under a minute instead of minutes.
What stays, what changes
Inputs and output shape match H3: text, a first and last frame, or up to 9 reference images, 3 clips and 3 audio tracks, with sound generated alongside the picture. It tops out at 768P (no 2K), and because the sampling is shortened, details can differ from MiniMax's own H3 API — compare them side by side below.
Not a MiniMax release
MiniMax published H3's weights; the acceleration is a third-party build and MiniMax has no price for it. The official model is MiniMax H3 — choose it when you need 2K or MiniMax's own output.
MiniMax H3 Fast pricing
Pay per second of video as you go, with no subscription required. Failed generations are refunded automatically.
| Tier | Official MiniMax H3 API | CheaperGen | You save |
|---|---|---|---|
480P per second · audio included · vs. MiniMax H3 Max 480P | $0.0369/s With a monthly plan: Pro $0.0352Max $0.0335 | −26% | |
768P per second · audio included · vs. MiniMax H3 768P | $0.0546/s With a monthly plan: Pro $0.0518Max $0.049 | −32% |
Monthly plans lower prices on most models (shown under each price); you can still pay as you go. Pro $499/month · Max $4,999/month.
- Official MiniMax H3 API: MiniMax's official H3 API price at the same resolution, platform.minimax.io (MiniMax sells no H3 Fast, so this is the reference: MiniMax H3 768P $0.08 / s; at 480P, MiniMax H3 Max 480P $0.05 / s, MiniMax's only official 480P H3 tier). Prices verified October 18, 2026.
- Reference-to-video: reference-video seconds are billed like output seconds; the first 5 reference images are included, each extra image adds about one second's price; first / last frames and reference audio are free.
- Accelerated variant: the struck-through price is the official MiniMax H3 API price at the same resolution (H3 at 768P, H3 Max at 480P). MiniMax has no price for H3 Fast itself.
Specifications
- Base model
- MiniMax H3 (open weights)
- Resolutions
- 480P (about 850×480 at 16:9) · 768P (1344×768 at 16:9)
- Duration
- 4–15 s (24 fps; clips can run up to ~0.6 s longer)
- Aspect ratios
- 16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9
- Inputs
- Text, first/last frame, up to 9 reference images, 3 videos and 3 audio clips
- Audio
- Always on (included)
- Enable Safety Checker
- Default true · can be set to false over the API
- Released
- Oct 15, 2026
Use MiniMax H3 Fast via API
One request to start a job, one to fetch the result. Same shape for every model.
const API = "https://cheapergen.com/api/v1";
const headers = {
Authorization: `Bearer ${process.env.CHEAPERGEN_API_KEY}`,
"Content-Type": "application/json",
};
// 1. Submit the job
let job = await fetch(`${API}/run/minimax/h3-fast/text-to-video`, {
method: "POST",
headers,
body: JSON.stringify({
"prompt": "A paper boat drifts down a rain-filled gutter at dusk, the patter of rain and a distant tram bell",
"aspect_ratio": "16:9",
"resolution": "768P",
"duration": 6
}),
}).then((r) => r.json());
// 2. Poll until it finishes (or pass webhook_url and skip polling)
while (job.status === "queued" || job.status === "running") {
await new Promise((r) => setTimeout(r, 3000));
job = await fetch(`${API}/generations/${job.id}`, { headers }).then((r) => r.json());
}
console.log(job.status === "succeeded" ? job.output.video.url : job.error);MiniMax H3 Fast FAQ
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MiniMax H3 Fast is an accelerated build of MiniMax H3, which is developed by MiniMax; the acceleration is not a MiniMax release. CheaperGen does not own the model. Trademarks belong to their respective owners. · Markdown · OpenAPI