01 / OVERVIEW
What is HappyHorse?
HappyHorse 1.0 jointly generates 1080p video and synchronized audio in one pass. Ranked #1 on Artificial Analysis Arena. Try…
Video & Audio, United in One Pass
02 / CAPABILITIES
Key features
A unified architecture that sets new standards for open-source video generation.
Frequently asked questions
What is HappyHorse 1.0?
HappyHorse 1.0 is a 15-billion parameter open-source AI model that jointly generates video and synchronized audio (dialogue, ambient sound, Foley effects) from…
How does HappyHorse compare to other video models?
In blind user testing on Artificial Analysis Video Arena, HappyHorse achieved Elo scores of 1333–1357 for Text-to-Video and 1391–1406 for Image…
SOURCES
Official website & sources
Sources
Updated on 2026-10-21
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