HappyHorse 1.1

Parameters below were verified against the live model directory on November 5, 2026. Check the model directory for current schema, availability, and prices.

Overview

Text-to-video generation. Drive video generation from a text prompt alone, no reference material required — ideal for quickly turning copy and creative descriptions into motion. First-frame image reference. Pass an image via media[].type: first_frame to anchor the video’s first frame (image-to-video style usage); the prompt describes how the scene unfolds.

The full model guide, live parameter schema, and playground for every model ID are available in the HiPix model directory.

Model IDs

Model ID	Mode	Notes
ali/happyhorse-1-1/image-to-video	Image-to-Video
ali/happyhorse-1-1/image-to-video-spicy	Image-to-Video
ali/happyhorse-1-1/reference-to-video	Image-to-Video
ali/happyhorse-1-1/reference-to-video-spicy	Image-to-Video
ali/happyhorse-1-1/text-to-video	Text-to-Video
ali/happyhorse-1-1/text-to-video-spicy	Text-to-Video

Parameters

Requests are submitted to POST /v1/videos (video) or POST /v1/images/generations / POST /v1/images/edits (image). Fields marked metadata.* travel inside the metadata object.

ali/happyhorse-1-1/image-to-video

API field	Type	Required	Values / limit
prompt	string	Yes	—
metadata.media	array	Yes	up to 1; ≤20 MB each; images
metadata.resolution	enum	Yes	720P, 1080P; default 720P
seconds	number	Yes	4–15 (integer); default 5
metadata.watermark	boolean	No	true / false

ali/happyhorse-1-1/image-to-video-spicy

API field	Type	Required	Values / limit
prompt	string	Yes	—
metadata.media	array	Yes	up to 1; ≤20 MB each; images
metadata.resolution	enum	Yes	720P, 1080P; default 720P
seconds	number	Yes	4–15 (integer); default 5

ali/happyhorse-1-1/reference-to-video, ali/happyhorse-1-1/reference-to-video-spicy

API field	Type	Required	Values / limit
prompt	string	Yes	—
metadata.media	array	Yes	up to 9; ≤20 MB each; images
metadata.resolution	enum	Yes	720P, 1080P; default 720P
metadata.ratio	enum	Yes	1:1, 9:16, 16:9, 3:4, 4:3; default 1:1
seconds	number	Yes	4–15 (integer); default 5
metadata.watermark	boolean	No	true / false

ali/happyhorse-1-1/text-to-video

API field	Type	Required	Values / limit
prompt	string	Yes	—
metadata.negative_prompt	string	No	—
metadata.resolution	enum	Yes	720P, 1080P; default 720P
metadata.ratio	enum	Yes	1:1, 16:9, 9:16, 4:3, 3:4; default 1:1
seconds	number	Yes	4–15 (integer); default 5
metadata.watermark	boolean	No	true / false

ali/happyhorse-1-1/text-to-video-spicy

API field	Type	Required	Values / limit
prompt	string	Yes	—
metadata.negative_prompt	string	No	—
metadata.resolution	enum	Yes	720P, 1080P; default 720P
metadata.ratio	enum	Yes	1:1, 16:9, 9:16, 4:3, 3:4; default 1:1
seconds	number	Yes	4–15 (integer); default 5

Example

A minimal request for ali/happyhorse-1-1/text-to-video:

curl -X POST https://api.apimart.cc/v1/videos \
  -H "Authorization: Bearer $HIPIX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "ali/happyhorse-1-1/text-to-video", "prompt": "A kitten running through a sunlit garden", "seconds": 5, "metadata": {"resolution": "720P", "ratio": "1:1"}}'

Poll the task with GET /v1/videos/{task_id} until status is completed or failed.

Limits, availability, and pricing

• Submit only the input types listed for the exact model ID; unsupported inputs are rejected or removed on HiPix.
• See Submit a Video Task or the model directory for the full request contract, and Pricing & Billing for how charges are settled.
• Prices and availability are shown per model ID in the model directory.