Happy Horse Physically realistic AI video

Happy Horse is an AI video model that produces physically realistic, smoothly animated clips. It supports both text-to-video and image-to-video, so you can start from a description or animate from a single first frame.

Use text-to-video when you want to describe a scene from scratch and pick the aspect ratio yourself. Use image-to-video when you already have a still and want it animated; the output ratio automatically follows your input image.

Credits are charged per second of output video, with a different rate per resolution: 720P = 19 credits/second, 1080P = 32 credits/second. So a 5-second 720P clip costs 95 credits, and a 5-second 1080P clip costs 160 credits.

Duration is any whole number from 3 to 15 seconds. Resolution is 720P or 1080P. For text-to-video, aspect ratio can be 16:9, 9:16, 1:1, 4:3, or 3:4. For image-to-video, the ratio is determined automatically by your input image.

JPEG, JPG, PNG, or WEBP. The image must be at least 300px on each side, with an aspect ratio between 1:2.5 and 2.5:1, and no larger than 10MB.

Subscribers can disable the watermark at submit time. Free users will see a small watermark in the bottom-right corner of the generated video.

Most clips finish within 1–5 minutes depending on duration, resolution, and current load. The page polls progress automatically and the video appears on the right when it's ready.

Yes. If a generation ends in FAILED, CANCELED, or UNKNOWN status, the credits are automatically refunded to your account. Successful generations are non-refundable.