What is HappyHorse 1.0, and what can you make with it on VideoAI?
It is a HappyHorse Alibaba video generation model built by Alibaba ATH (Alibaba Token Hub), and its defining trait is that the picture and a synchronized audio track are generated together in a single pass: lip synced dialogue, ambient sound, and an emotive human voice, not a silent clip you score later. On VideoAI you work with this HappyHorse ai video generator right in the browser, and all four routes are open inside the site: text to video, image to video, reference to video, and video edit. Choose a route, describe the scene, write what the character says, and generate.
Does it really generate the audio on its own, or do I still have to dub it?
Picture and sound arrive from the same generation pass, so the lip synced dialogue, ambient sound, and vocal performance all come out at once. There is no separate dubbing or track syncing step sitting in the middle, and that joint pass is exactly what sets HappyHorse 1.0 apart from picture only video models. On VideoAI it means a talking clip is done the moment it finishes, with sound already carried on it.
How to use HappyHorse 1.0 on VideoAI for a talking clip?
Log in first, then choose your input: a prompt on its own, exactly one first frame image, or 1 to 9 reference images when a particular character has to stay consistent. Write the spoken line straight into the prompt, because the lip sync is built around the words you type. Set the resolution, duration, and aspect ratio, press generate inside the site, and play the result back with sound on. Every step of this happens on VideoAI.
What does HappyHorse pricing look like on VideoAI, and is there a free allowance to start?
New accounts open with 10 free credits, and that balance already covers HappyHorse 1.0, so you can start generating with it right away. Once those credits run down, you keep going with a credit top up pack or a subscription plan, whichever suits how often you make clips. VideoAI settles all of this in one place, so there is nothing to price up anywhere else.
Do I need an account, and do the clips carry a watermark or allow commercial use?
You do need to sign in with an account before anything generates, and there is no way around that step. The clips themselves come out with no watermark, ready to download, and cleared for commercial use, including the ones you make on your starter credits.
How long can a clip run, and can I export it in 4K?
Each clip runs 3 to 15 whole seconds, with 5 seconds as the default, at either 720P or 1080P, and 1080P is the default there. There is no 4K export. A single clip can still cut between several shots instead of holding one unbroken take, and anything past 15 seconds means generating a few clips and joining them together yourself.
Is HappyHorse 1.0 open source, and how is it different from 1.1?
No, it is not open source: there are no downloadable weights, no official code repository, and no lightweight local build for running it at home. Those stories, including the so called 5B mini version, are invented by copycat sites, and the real answer is that you generate on VideoAI instead. Version 1.1 is a separate, later release that landed after 2026 06 23, while this page and the model you use on VideoAI both mean HappyHorse 1.0, and there are no Pro, Fast, Turbo, or Lite tiers to pick from.