AI Video Generation, Redefined

The first open-source model that generates video and audio in a single unified pass. 7 languages, 8-step inference, cinema-grade 2K output.

Drag image here or describe your idea

Why HappyHorse Dominates

The first open-source model to unify video and audio generation — setting new standards for the industry.

Unified Audio-Video Architecture

15B-parameter transformer generates video and audio jointly in one pass — no post-processing needed.

#1 on Artificial Analysis Arena

Elo 1333-1406, surpassing Seedance 2.0 by ~60 points in blind user voting.

Blazing Fast 8-Step Inference

DMD-2 distillation eliminates Classifier-Free Guidance. Single-GPU deployment now possible.

Native 7-Language Lip-Sync

Mandarin, Cantonese, English, Japanese, Korean, German, French — word error rate only 14.60%.

Native 1080p / 2K Output

Cinema-grade quality up to 2K. Built-in super-resolution module for further upscaling.

Fully Open Source

Base model, distilled model, super-resolution module, and inference code — all released.

How It Works

01

Upload or Describe

Drag an image or type your video idea

02

Generate

AI creates video + audio in one pass

03

Download

Get high-quality output instantly

Choose Your Plan

Flexible plans for creators. No hidden fees.

Basic
$9.90/mo

For light and occasional use

  • ✅ 150 credits / month
  • ✅ Standard generation speed
  • ✅ JPG/PNG format downloads
  • ✅ 30-day cloud storage
  • ✅ Watermark-free outputs
  • ❌ Commercial use
Most Popular
Pro
$19.90/mo

Built for professional creators

  • ✅ 500 credits / month
  • ✅ Priority generation queue
  • ✅ JPG/PNG/WebP format downloads
  • ✅ Batch generation feature
  • ✅ Unlimited cloud storage
  • ✅ Commercial Use License
  • ✅ Watermark-free outputs