HappyHorse

Type a text prompt or upload an image to HappyHorse, and you get back a native 1080p video with synced audio, including lip-sync and ambient sound produced in the same pass.

HappyHorse is an AI video generator built on HappyHorse 1.0, a model released in 2026 that uses a single-stream 15B parameter Transformer.

Clips are generated in about 10 seconds, which keeps iteration quick when you are testing several ad concepts or short anime-style pieces.

The model covers more than 50 visual styles, so one prompt can be pushed toward very different looks without switching tools.

HappyHorse also offers an open-source base model, which matters if you want to build on it yourself, and the listing places it in the AI API space as well as text to video and image to video.

Marketers and businesses producing video ads are the obvious fit, and developers get room to experiment.

The claim of a top ranking is the maker's own, so judge the output by running your own prompts.