AI Video Generator
Prompt
0/4000

Aspect Ratio

Resolution
Duration
Required Credits
800
Output

Your videos will be displayed here

HappyHorse 1.0 — The #1 Open-Source AI Video Model, Coming Soon to Viberot

HappyHorse 1.0 is a 15-billion-parameter unified Transformer that jointly produces cinematic 1080p video and synchronized audio from a single text or image prompt. It recently topped the Artificial Analysis AI Video Arena, surpassing Seedance 2.0. The official API is not yet public — Viberot will enable HappyHorse 1.0 generation the moment it becomes available.

What Makes HappyHorse 1.0 Special

Unified video + audio from a single Transformer

HappyHorse 1.0 replaces multi-stream complexity with a single 40-layer self-attention Transformer that processes text, video and audio together. The result is tightly synchronized output, seven-language lip-sync, and open-source commercial-use rights.

HappyHorse 1.0 generates full 1080p video with rich detail and stable motion — a major leap for an open-source model.

How HappyHorse 1.0 Will Work on Viberot

What to expect when it launches

Once the HappyHorse 1.0 official API is released, Viberot will plug it in without any change to your workflow — select the model, write a prompt, pick a duration, and generate. The steps below preview what the flow will look like.

1

Select HappyHorse 1.0

Pick HappyHorse 1.0 from the Viberot video model selector. Today the card is marked Coming Soon — we will flip the switch the moment the API is available.

2

Write Your Prompt

Describe the scene, subject, mood and (optionally) the dialogue line for lip-sync. HappyHorse understands seven languages natively.

3

Choose Duration & Input

Use text-to-video or upload a reference image. Pick your preferred duration — HappyHorse 1.0 always outputs at 1080p.

4

Generate & Download

Hit Generate and Viberot will stream the finished HappyHorse 1.0 video and synchronized audio straight to your library, watermark-free on paid plans.

HappyHorse 1.0 on Viberot — Open-Source Quality, Studio Workflow

Why wait for it on Viberot instead of self-hosting

HappyHorse 1.0 is open-source, but running a 15B-parameter video+audio model requires serious GPUs. Viberot will host HappyHorse 1.0 for you with zero setup, shared queue, and the same credit balance you already use for Veo, Seedance and Kling.

  • No GPUs, no installs — use HappyHorse 1.0 straight from the browser
  • Unified credits across every AI video model on Viberot
  • Commercial-use license preserved for paid-plan output
  • Automatic upgrade — any prompts saved today will work on launch day

HappyHorse 1.0 vs Other AI Video Models

How it compares

HappyHorse 1.0 is the first open-source model to rank #1 on the public AI Video Arena. Here is how it stacks up against the current Viberot lineup.

#1 on AI Video Arena

Blind-test Elo score above Seedance 2.0 and Veo 3.1 Fast at the time of this page.

Fully Open Source

Base model, distilled model, super-resolution module and inference code will all be released with commercial rights.

Joint Video + Audio

Unlike most models where audio is bolted on afterwards, HappyHorse 1.0 produces both streams in one pass.

Seven-Language Lip Sync

Native multilingual support without extra TTS or dubbing steps.

Single-Stream Transformer

A 40-layer self-attention-only architecture — simpler, faster to iterate on, easier to fine-tune.

Commercial Use

Output on paid Viberot plans will be watermark-free and safe for commercial projects.

HappyHorse 1.0 FAQ

What we know so far

Be First in Line for HappyHorse 1.0 on Viberot

HappyHorse 1.0 is the #1 open-source AI video model — and it is coming to Viberot the moment the official API is available. Create a free account now so your credits, prompts and library are ready on launch day.