DigitalbyDefault.ai
HappyHorse logo

HappyHorse

Alibaba's #1-ranked AI video model with native audio generation

4.8(1,100 reviews)
Design & Creative

About

HappyHorse 1.0, developed by Alibaba's ATH AI Innovation Unit, topped the Artificial Analysis Video Arena leaderboard in April 2026 with its defining capability: joint video-audio generation in a single inference pass. Rather than adding audio as a post-processing step, HappyHorse simultaneously produces synchronized ambient sound, narration nuances, and immersive audio alongside cinematic video from a plain text prompt. Backed by Alibaba's $293M investment in parent company ShengShu, the model is available via happyhorse.app with open model weights planned and a public API coming soon.

Key Features

Joint video + audio generation in one pass
Text-to-video with synchronized sound design
#1 on Artificial Analysis Video Arena leaderboard
Cinematic realism with ambient audio
Open model weights (planned)
Public API (coming soon)

Integrations

API accessAlibaba Cloud

Reviews

No reviews yet. Be the first to share your experience.

Free / API coming soon
freemium plan
Visit WebsiteNeed help implementing?Compare with other apps
CategoryDesign & Creative
Pricingfreemium
Rating4.8/5
Reviews1,100
StatusVerified

Related Reading