Alibaba: HappyHorse 1.0 I2V
alibaba/happyhorse-1.0-i2v
Access HappyHorse 1.0 I2V from Alibaba using the Puter.js AI API for free.
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Model Card
HappyHorse 1.0 Image-to-Video is a video generation model from Alibaba's ATH AI Innovation Unit that animates a static image, with an optional text prompt, into a video clip while preserving the source subject.
It outputs at 720p or 1080p resolution in clips from 3 to 15 seconds, and generates synchronized audio, including dialogue, ambient sound, and effects, in the same pass as the video. At launch in April 2026, it topped the Artificial Analysis Video Arena leaderboard for both text-to-video and image-to-video generation.
HappyHorse 1.0 is part of a broader model family from the same unit that also includes text-to-video and subject-to-video generation, plus video editing modes.
Max Duration 15s
seconds
Frame Rate N/A
fps
Aspect Ratio N/A
supported
Release Date Apr 27, 2026
Code Example
Use HappyHorse 1.0 I2V in your app with the Puter.js AI API — no API keys or setup required.
// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.txt2vid("A cat playing with a ball of yarn", {
model: "alibaba/happyhorse-1.0-i2v"
}).then(video => {
document.body.appendChild(video);
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.txt2vid("A cat playing with a ball of yarn", {
model: "alibaba/happyhorse-1.0-i2v"
}).then(video => {
document.body.appendChild(video);
});
</script>
</body>
</html>
More AI Models From Alibaba
HappyHorse 1.1 Text-to-Video
HappyHorse 1.1 Text-to-Video is a video generation model from Alibaba's ATH (Alibaba Token Hub) AI Innovation Unit, generating video and synchronized audio together in a single pass rather than adding sound afterward. It builds on HappyHorse 1.0, with Alibaba reporting improvements in motion dynamics, subject consistency, prompt adherence, visual quality, and audio generation. The model outputs clips from 3 to 15 seconds at 720p or 1080p, in 16:9, 9:16, 1:1, 4:3, or 3:4 aspect ratios, with lip-synced dialogue, ambient sound, and effects generated alongside the visuals. Following its release in June 2026, it ranked No. 2 across Artificial Analysis's Video Arena leaderboards, behind Google's Veo 3.1.
VideoHappyHorse 1.1 Image-to-Video
HappyHorse 1.1 Image-to-Video is a closed video generation model from Alibaba that turns a single reference image, used as the first frame, into a short video clip, guided by an optional text prompt. It's part of Alibaba's HappyHorse line, distinct from the open-weight Wan models built by Alibaba's Tongyi Lab. Output resolution goes up to 1080p, with clip lengths from 3 to 15 seconds across five aspect ratios (16:9, 9:16, 1:1, 4:3, 3:4). The model generates audio alongside video in the same pass, including lip-synced dialogue in multiple languages, rather than adding sound in a separate step. Compared to HappyHorse 1.0, Alibaba describes 1.1 as improving motion dynamics, skin texture realism, and close-up quality, though we haven't seen an independent benchmark confirming those gains.
VideoHappyHorse 1.1 R2V
HappyHorse 1.1 Reference-to-Video is a video generation model from Alibaba, built by the company's ATH (Alibaba Token Hub) AI Innovation Unit. Its reference-to-video (R2V) mode takes 1 to 9 reference images of characters or scenes together with a text prompt and composes them into a single video, keeping each subject's identity consistent across shots. HappyHorse is a 15-billion-parameter unified self-attention Transformer that generates video and audio in one pass rather than as separate steps. Version 1.0 first appeared anonymously in the Artificial Analysis Video Arena in April 2026 before Alibaba was named as its creator; version 1.1 followed in June 2026 with stronger motion expressiveness, tighter multi-image consistency, and improved audio-visual sync. Output runs 3 to 15 seconds at 720p or 1080p across multiple aspect ratios.
Frequently Asked Questions
You can access HappyHorse 1.0 I2V by Alibaba through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required.
Integrating HappyHorse 1.0 I2V through the Puter.js AI API is free under the User-Pays Model. Each user pays for their own AI usage through their Puter account.
HappyHorse 1.0 I2V was created by Alibaba and released on Apr 27, 2026.
Yes — the HappyHorse 1.0 I2V API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Add HappyHorse 1.0 I2V to your app for free
Developers can integrate HappyHorse 1.0 I2V for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.