Happy Horse 1.0
Beta8 variants liveHappyHorse 1.0 is Alibaba's open-source AI video model — ranked #1 on global leaderboards for both text-to-video and image-to-video. Built on a 15B-parameter Transformer with native 1080p output, 50+ visual styles, and ~10s generation speed. Available now in the muapi playground on Pro and Business plans.
Further reading: the Happy Horse 1.1 API guide.
Closed playground beta
HappyHorse 1.0 is currently available only inside the muapi playground on the Pro and Business plans — API-key access opens in a later public release.
HappyHorse 1.0 Text to Video
Generate native 1080p video from text prompts with vivid character motion and dynamic scene storytelling.
HappyHorse 1.0 Text to Video
Cost-efficient 720p text-to-video — ideal for prototyping and high-volume generation workflows.
HappyHorse 1.0 Image to Video
Animate any still image with fluid, expressive 1080p motion. Optional text prompt guides animation direction.
HappyHorse 1.0 Image to Video
Animate still images to 720p video. Same animation quality as 1080p at half the cost.
HappyHorse 1.0 Reference to Video
Condition generation on 1–9 reference images plus a text prompt — preserves character look and style at 1080p.
HappyHorse 1.0 Reference to Video
Reference-conditioned video at 720p — iterate on character-consistent scenes before committing to full resolution.
HappyHorse 1.0 Video Edit
Edit an existing video using natural-language instructions. Swap props, restyle characters, or change environments at 1080p.
HappyHorse 1.0 Video Edit
Natural-language video editing at 720p — ideal for draft edits and high-volume editing pipelines.