Last updated: May 2026
Alibaba ATH Innovation Unit's stealth-launched open-source video model, topping Artificial Analysis text-to-video and image-to-video leaderboards at debut. Compare it with Synthesia: The enterprise leader for AI avatar video — 240+ stock avatars, personal avatars, 1000+ voices, 160+ language dubbing, and a polished business workflow.
| HappyHorse 1.0 | Synthesia | |
|---|---|---|
| Price | Free | $29/month |
| Type | Open source | Closed source |
| Free Option | Yes | Yes |