Model API

Happy Horse 1.1

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

Model id

Use this in every request

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

This model has other modes with their own ids: alibaba/happy-horse/v1.1/text-to-video, alibaba/happy-horse/v1.1/reference-to-video.

Run it

Quote the input, start the generation with the quote, then poll the job. Set RAYWAKE_API_KEY first; see Authentication.

# 1. Price the exact input (quotes are valid for up to 10 minutes)
curl -s https://api.raywake.com/v1/quotes \
  -H "Authorization: Bearer $RAYWAKE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "alibaba/happy-horse/v1.1/image-to-video",
  "input": {
    "image_url": "https://example.com/input.png",
    "prompt": "A red ceramic cup on a wooden table, soft morning light"
  }
}'

# 2. Start the generation with the quote_id from step 1
curl -s https://api.raywake.com/v1/generate \
  -H "Authorization: Bearer $RAYWAKE_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{"model": "alibaba/happy-horse/v1.1/image-to-video", "quote_id": "QUOTE_ID", "input": {"image_url":"https://example.com/input.png","prompt":"A red ceramic cup on a wooden table, soft morning light"}}'

# 3. Poll until the status is terminal
curl -s https://api.raywake.com/v1/jobs/JOB_ID \
  -H "Authorization: Bearer $RAYWAKE_API_KEY"

Input

Input fields for alibaba/happy-horse/v1.1/image-to-video
Name	Type	Description
`image_url`required	string (image URL)	URL of the first frame image. Formats: JPEG, JPG, PNG, BMP, WEBP. Dimensions must be at least 300px. Aspect ratio must be between 1:2.5 and 2.5:1. Max 20 MB.
`prompt`	string	Optional text prompt guiding the animation. Max 2500 characters.
`resolution`	string (enum)	Output video resolution tier. Default: `1080p` One of: `720p`, `1080p`
`duration`	number (enum)	Output video duration in seconds (3-15). Default: `5` One of: `3`, `4`, `5`, `6`, `7`, `8`, `9`, `10`, `11`, `12`, `13`, `14`, `15`
`seed`	integer	Random seed for reproducibility (0-2147483647).

Output

A succeeded job lists its results under outputs, stored on our side. See Jobs for every field.

Job excerpt

"outputs": [
  { "type": "video", "url": "https://…", "mime_type": "video/mp4", "thumbnail_url": "https://…" }
]

Pricing

720p$0.23/ second
1080p$0.29/ second

The exact charge for your input comes from a quote. How charges settle