alibaba/happy-horse/v1.1/image-to-video

Happy Horse 1.1 is Alibaba's #1-ranked video model. This image-to-video endpoint animates a still image into 1080p video with synchronized native audio and multilingual lip-sync

Inference

Commercial use

Partner

Schema

LLMs

Playground API Examples

Input

Image Url*

Hint: Drag and drop image files from your computer, images from web pages, paste from clipboard (Ctrl/Cmd+V), or provide a URL. Accepted file types: jpg, jpeg, png, webp, gif, avif

Prompt

Type # to reference inputs.

Resolution

Duration

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

Download

{
  "video": {
    "url": "https://v3b.fal.media/files/b/0a9f39fd/N9U9ZDVOZvX13yQTzx0wN_NrDUbOAF.mp4",
    "content_type": "video/mp4",
    "file_name": "N9U9ZDVOZvX13yQTzx0wN_NrDUbOAF.mp4",
    "file_size": 4182558,
    "width": 1244,
    "height": 1666,
    "fps": 24,
    "duration": 10.122667,
    "num_frames": 241
  },
  "seed": 174657556
}

For every second of 720p video you generated, you will be charged $0.14/second. For 1080p video you will be charged $0.18/second.

Logs

Happy Horse 1.1 — Image to Video

Happy Horse 1.1 is Alibaba's top-ranked video model. The image-to-video endpoint animates a single still image into motion with synchronized native audio — ambient sound and effects rendered together with the picture. The output keeps the aspect ratio of the source image, and when the image shows a face, multilingual lip-sync matches mouth movement to speech.

Highlights

1080p / 720p output, 3–15s duration.
Aspect ratio is derived from the input image (no aspect-ratio control).
Native audio generated with the video — guide motion, mood, and sound through the prompt.
Multilingual lip-sync when the source image is a speaking character.

Best for

Bringing a hero still or keyframe to life — cinematic push-ins and slow orbits, atmospheric scenes, and animating a portrait into a talking shot.