About This Site
Open-source 15B parameter AI model for joint video and synchronized audio generation. Happy Horse 1.0 is an advanced open-source AI video generation model designed to produce high-quality 1080p videos with synchronized audio and multilingual lip-sync capabilities. Developed by the Happy Horse team in 2026, it utilizes a 15-billion-parameter unified Transformer architecture to jointly generate video frames and corresponding sound from text or image prompts. The model is fully open-source, including weights and inference code, and is designed for self-hosting with full commercial-use rights. It features a unique 40-layer self-attention network that ensures stable training and cinematic output, making it a powerful tool for professional video production and localized content creation.
Alternatives
Muse Video - 3
Cinematic AI video generator transforming text and images into high-fidelity clips with native audio.
Muse Video AI Generator is an independent online AI video creation platform based on Meta's early-preview video generation model from Meta Superintelligence Labs. The platform allows creators to transform text prompts and reference images into cinema-grade short video drafts, commercial ads, storyboards, product clips, and social posts. It emphasizes visual fidelity, prompt adherence, frame-to-frame temporal consistency, and features native synchronized audio cueing along with grounding physics and directable camera movements entirely inside the browser without requiring a local GPU setup.
Wavo – Wan 3.0 AI Video Generator
Wavo is an independent AI video platform built around Wan 3.0 technology. It enables creators, marketers, and filmmakers to turn text, images, video, audio, and supported documents into AI-generated videos with flexible multimodal workflows.
Wavo is an independent Wan 3.0 AI video generator for text-to-video, image-to-video, and multimodal video creation. Users can create and edit AI videos from text, images, video, audio, and supported documents through flexible web-based workflows. It is built for creators, marketers, filmmakers, and anyone looking to experiment with Wan 3.0 video generation without managing complex model infrastructure.
VidKiss
VidKiss is a browser-based AI video and image workspace that provides access to nine video models and five image models with one shared credit balance.
VidKiss brings text-to-video, image-to-video, text-to-image, and image-to-image into one web workspace. It provides access to nine third-party video models and five image models through a single account and shared credit balance. Start from a text prompt or a reference image, choose a model, then set the duration, aspect ratio, and resolution supported by that model before generating. Video clips range from 3 to 15 seconds. Prompts and results remain in generation history so users can review variations, rerun a prompt, and download finished files. New accounts receive free credits. One-time credit packs start at $4.98, and purchased credits do not expire.
Key Features AI
Core Features
Unified Transformer architecture for joint video and audio generation
1080p high-definition cinematic output
Multilingual lip-sync support for seven languages
8-step DMD-2 distillation for accelerated inference
Open-source weights and code with commercial-use permission
Self-hostable on NVIDIA H100 or A100 GPUs
Advantages
Produces synchronized audio and video in a single pass
Fully open-source and free for commercial use
Industry-leading low Word Error Rate for lip-sync
High visual quality and physical realism scores
Supports efficient 8-step distillation for faster rendering
缺点：Requires high-end hardware (NVIDIA H100/A100 with 48GB VRAM)
缺点：Video clips are currently limited to 5-8 seconds
缺点：Requires technical knowledge for local deployment and installation
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