Happy Horse 1.1

Happy Horse 1.1 is Alibaba's video generation model, served on fal and available on Morphic. It generates video and synchronized audio together in a single pass, with native lip-sync across seven languages. It runs text-to-video, image-to-video, and reference-to-video, and outputs 1080p clips of 3 to 15 seconds in nine aspect ratios.

Happy Horse 1.1 is strong for dialogue and performance scenes, since it generates synchronized audio and native lip-sync in a single pass. Reference-to-video for up to nine subjects suits multi-character and ensemble work, and nine aspect ratios cover cinematic 21:9, vertical 9:16, and square delivery.

Yes. Happy Horse 1.1 generates video and audio together in a single pass, so dialogue, sound effects, ambience, and music stay in sync with the motion, with no separate audio step. It provides native lip-sync across seven languages: English, Mandarin, Cantonese, Japanese, Korean, German, and French, with mouth shapes matched to each spoken language.

Pass up to nine reference images and refer to each by index in the prompt, as character1 through character9 matching the order you supply them. Happy Horse 1.1 carries each subject into the new scene so a cast stays recognizable across shots. Name which subject comes from which image, then describe the scene and the action.

Happy Horse 1.1 outputs 720p or 1080p, in clips of 3 to 15 seconds with a 5-second default. It supports nine aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, 9:21, 5:4, and 4:5. Prompts can run up to 2,500 characters.

Open Morphic, switch the prompt bar to Video mode, and pick Happy Horse 1.1 from the model picker. Describe your scene, optionally attach a still for image-to-video or up to nine reference images for reference-to-video, then choose a resolution and aspect ratio and run the prompt. Audio is generated in the same pass.