HappyHorse
happyhorses.io
Open-source model for generating synchronized video and audio content
Description
Happy Horse 1.0 is an open-source, 15-billion-parameter unified Transformer model designed for joint video and audio generation. It specializes in creating synchronized multimedia content with accurate multilingual lip-sync capabilities. The model is intended for developers, researchers, and content creators who need to generate realistic video presentations, educational content, or multilingual media without requiring separate tools for video and audio production. It solves the problem of disjointed multimedia creation by integrating both modalities into a single coherent framework,
Installation
Not sure where to start — ask an assistant to walk you through:
Features
15-billion-parameter unified Transformer architecture
Joint video and audio generation in one model
Multilingual lip-sync synchronization
Open-source and freely available
Unified framework for multimedia content
Use cases
Creating educational videos with synchronized narration
Producing multilingual presentation videos with accurate lip movement
Generating talking-head content for virtual assistants or avatars
Developing localized training materials with proper audiovisual alignment
Prototyping multimedia content for entertainment or marketing
FAQ
Happy Horse is an AI video generation platform that transforms text, images, and audio into cinema-quality videos using its unified Happy Horse 1.0 model. Users input a descriptive prompt, customize settings, and generate a video in seconds.
It's ranked #1 for its 15B-parameter unified Transformer enabling multi-modal fusion, native multi-shot storytelling, joint audio-video synthesis, and DMD-2 distilled inference for superior speed and quality compared to competitors.
Yes, it offers a free tier with 10 credits to start, watermarked outputs, and basic features. Paid plans unlock more credits, higher resolutions, no watermark, and priority queue access.
You can create social media clips (TikTok, YouTube), video ads, product demos, educational animations, film previsualizations, and personal projects like greetings or montages.
Yes, all paid plans include a full commercial license, allowing use in ads, client work, and revenue-generating projects with complete legal confidence.
It supports up to 1080p resolution and 6 aspect ratios (16:9, 9:16, 4:3, 3:4, 21:9, 1:1) optimized for platforms like YouTube and TikTok.
It generates coherent scene sequences from one prompt, maintaining character identity and visual style across automatic transitions, creating short narratives without manual editing.
It supports audio generation and lip-sync for 7 languages: English, Mandarin, Japanese, Korean, German, French, and Cantonese.
Using DMD-2 distillation, it generates a 5-second 1080p video in approximately 38 seconds on H100 hardware, enabling rapid creative iteration.
Free offers basic features with watermark. Lite adds more credits and 1080p. Pro increases credits and parallel tasks. Ultra provides highest priority and dedicated support.
Specs
| Type | Agent |
| Section | AI agents |
| Pricing | paid (от $9.9/mo) |
| Platform | Browser extension |
| Systems | browser |
| Hosting | cloud |
| Install | saas |
| Site language | en |
| Rating | 0.00 (0 reviews) |
| Views | 159 |
| Launched | 2026-04-08 |
