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.
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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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