Happy Horse is an open-source AI video creation platform centered on Happy Horse 1.0. It supports text-to-video and image-to-video generation, letting users upload prompts or reference images to produce cinematic clips. The system emphasizes joint audio-video output, multilingual lip-sync, motion quality, and rapid iteration. Users can choose fast or quality modes, adjust resolution and aspect ratio, and generate output suitable for storyboards, concept testing, product marketing, and internal creative reviews. It is built to help teams evaluate ideas quickly and produce shareable video drafts with minimal friction.

Happy Horse 1.0 is a 15B-parameter open-source AI video generation model that creates short, high-quality videos with synchronized audio from text or image prompts. It combines a unified Transformer architecture, multilingual lip-sync, and 1080p output in 5–8 second clips. The model also includes distilled inference, super-resolution, and open-source deployment code, making it suitable for self-hosted workflows. It supports commercial use and is optimized for efficient generation on modern GPUs. The product focuses on joint video-and-audio synthesis, stable output quality, and practical deployment for creators, developers, and researchers.