Question 1

What is HappyHorse?

Accepted Answer

HappyHorse is the #1 ranked open-source AI video generation model. Built on a unified Transformer architecture, it generates cinema-quality 1080p video with synchronized audio in a single forward pass from text prompts, images, or reference images.

Question 2

Is HappyHorse free to use?

Accepted Answer

Yes. HappyHorse offers a free tier with a generous daily generation quota. Paid plans are available for heavier usage. Since HappyHorse is open-source, you can also self-host with zero fees.

Question 3

How does HappyHorse compare to Sora and Kling?

Accepted Answer

HappyHorse holds the #1 position on the Artificial Analysis Video Leaderboard, outperforming Seedance, Kling, Runway, and Sora in blind user preference tests for both text-to-video and image-to-video.

Question 4

What languages does HappyHorse lip-sync support?

Accepted Answer

HappyHorse supports multilingual lip-sync in 7 languages: English, Mandarin Chinese, Cantonese, Japanese, Korean, German, and French.

Model	1080p	1080p HD	4K
Lite	10	15	30
Fast	20	30	60
Quality	40	60	120

Simple, Flexible Pricing

Credits per generation

Starter

Basic

Plus

Pro