HappyHorse
Alibaba's high-fidelity motion video model — text, image, and reference-to-video in one family, plus an editing model that rewrites footage you already have. Live on Molyin at limited-time pricing.
- 3–15s videos
- 720p & 1080p
- 9 aspect ratios
- Limited-time pricing
Every new account starts with free credits — you can put HappyHorse through its paces before spending anything.
HappyHorse Is Free Right Now
For a limited time, every account gets 5 free HappyHorse videos a day — any resolution, duration, or aspect ratio, zero credits spent. No catch, no watermark wall: the same model, on the house.
Generate for freeWhat Is HappyHorse?
HappyHorse is a family of AI video generation models developed by Alibaba, built around one obsession: motion that looks like it was filmed, not assembled. The flagship, HappyHorse 1.1, generates clips from a text prompt, animates a still image into video, or composes a scene from reference images — with the fluid camera work and physical coherence that made the model's name. Alongside it sits HappyHorse Video Edit, which takes a clip you already have and rewrites it from a plain-language instruction: swap the style, replace an object, keep everything else intact.
The spec sheet is unusually generous for a video model. Length is a continuous dial from 3 to 15 seconds — any integer, not a menu of presets — at 720p or 1080p. Nine aspect ratios cover every feed that matters, including 4:5, 5:4, and the ultra-tall 9:21 that most rivals simply don't offer. A seed control lets you reproduce and iterate on a result. HappyHorse 1.1 also generates native audio that matches the scene — while Video Edit keeps your source clip's original soundtrack.
On Molyin, HappyHorse runs inside the same AI video generator as the rest of our lineup — one prompt box, one credit balance. Editing has a dedicated home in the AI video editor, and if you want to see the model flexing on a live moment, the World Cup final page runs on it. Credits work the same everywhere; the pricing page has the numbers.
The HappyHorse Model Family
Two models, one engine. HappyHorse 1.1 creates footage from scratch; HappyHorse Video Edit transforms footage you bring. Knowing which to reach for saves both time and credits.
| Compare | HappyHorse 1.1 | HappyHorse Video Edit |
|---|---|---|
| Modes | Text-to-video · Image-to-video · Reference-to-video | Video edit — rewrite an existing clip with a plain-language instruction |
| Price | 13 credits/s at 720p · 17 credits/s at 1080p (limited-time) | 25 credits/s at 720p · 45 credits/s at 1080p |
| Inputs | A prompt, a first-frame image, or reference images | A source video (3–15s) plus up to 5 reference images |
| Output | 3–15s at any of 9 aspect ratios, 720p or 1080p | Follows the source clip's length and aspect ratio, original audio kept |
| Choose it when | You're starting from an idea, a still, or a mood board | You have footage that's almost right and want to change what's in it, not reshoot it |
Both models share one credit balance on Molyin. Prices shown are the current execution rates; the 1.1 rate is a limited-time offer.
HappyHorse Specs at a Glance
The exact numbers, straight from our integration — the details most model pages leave out.
| Spec | HappyHorse 1.1 |
|---|---|
| Duration | Any length from 3 to 15 seconds — a continuous slider, not fixed presets. Need exactly 7 seconds for an ad slot? Dial in 7. |
| Resolution | 720p and 1080p. |
| Aspect ratios | Nine: 16:9, 9:16, 4:3, 3:4, 4:5, 5:4, 21:9, 9:21, 1:1 — including 4:5, 5:4, and 9:21, which Seedance doesn't offer. |
| Reference input | Reference-to-video accepts images only. In image-to-video, the output follows your first frame's aspect ratio automatically. |
| Audio | Native audio generation. HappyHorse Video Edit keeps the source clip's original soundtrack. |
| Seed control | Yes. Fix the seed to reproduce a result, or vary it to explore takes on the same prompt. |
HappyHorse vs Seedance 2.0
Both are live on Molyin, and they're genuinely complementary — one prompt box, one credit balance, so the honest answer to "which one?" is: run your prompt on both and keep the winner.
| Spec | HappyHorse 1.1 | Seedance 2.0 |
|---|---|---|
| Duration | 3–15s, continuous | 4–15s, continuous |
| Resolution | 720p · 1080p | 480p · 720p · 1080p |
| Aspect ratios | 9 — adds 4:5, 5:4, and 9:21 | 6 |
| Audio | Native audio generation | Native audio generation |
| Price | 13 credits/s at 720p · 17 credits/s at 1080p (limited-time) | 25 credits/s at 720p · 60 credits/s at 1080p |
| Reaches its best in | Fluid motion, feed-native vertical formats, high-volume creation on a budget | Sound-on storytelling, 480p quick drafts, dialogue and ambience baked in |
Rates shown are current execution prices on Molyin; the HappyHorse 1.1 rate is a limited-time offer.
HappyHorse Prompt Examples
Copy one, tweak the details, and generate. HappyHorse rewards concrete language: name the camera move, the light, and the one thing that should feel alive.
Slow-motion shot of a striker volleying a ball into the top corner, stadium lights flaring, confetti frozen mid-air, crowd rising in the background, broadcast-camera framing, 16:9.
Match-day energy without match-day footage — built for reaction clips and sports memes.
The product in the photo rotates slowly on a matte pedestal, soft studio key light sweeping across its surface, shallow depth of field, background melting into warm gradient.
Start from a single product photo; the output follows your image's aspect ratio automatically.
Handheld golden-hour walk through a neon-lit night market, steam rising from food stalls, lens flares drifting past, the camera weaving between people, cinematic color grade.
4:5 is a HappyHorse exclusive in our lineup — feed-native framing with no crop.
A corgi in a tiny raincoat leaps over a puddle in slow motion, droplets scattering like glass beads, overcast soft light, low tracking camera at paw level.
Fur, water, and slow motion in one shot — exactly the physics HappyHorse is good at.
What People Make with HappyHorse
Six places the model has already found work. Each starts from a sentence and ends as a clip ready to post.
Sports memes & fan clips
- goal celebration video
- AI sports meme
- fan reaction clip
Product showcases
- product demo video
- 360 product spin
- ecommerce ad clip
Social shorts
- vertical short video
- reels b-roll
- story-format clip
Pet videos
- funny pet video
- dog slow motion clip
- cat meme video
Tutorials & explainers
- explainer b-roll
- how-to intro clip
- course visuals
Travel & places
- cinematic travel video
- city timelapse clip
- destination teaser
HappyHorse FAQ
What creators ask about Alibaba's video model — answered from our own integration.
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