HappyHorse 1.1 Reference

curl --request POST \
  --url https://api.goenhance.ai/api/v1/videos/generations \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "happyhorse-1-1-ref",
  "prompt": "[Image 1] walks toward [Image 2] in a neon-lit street",
  "image_urls": [
    "https://your-cdn.com/a.jpg",
    "https://your-cdn.com/b.jpg"
  ],
  "duration": 5,
  "resolution": "720P"
}
'

import requests

url = "https://api.goenhance.ai/api/v1/videos/generations"

payload = {
    "model": "happyhorse-1-1-ref",
    "prompt": "[Image 1] walks toward [Image 2] in a neon-lit street",
    "image_urls": ["https://your-cdn.com/a.jpg", "https://your-cdn.com/b.jpg"],
    "duration": 5,
    "resolution": "720P"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: 'happyhorse-1-1-ref',
    prompt: '[Image 1] walks toward [Image 2] in a neon-lit street',
    image_urls: ['https://your-cdn.com/a.jpg', 'https://your-cdn.com/b.jpg'],
    duration: 5,
    resolution: '720P'
  })
};

fetch('https://api.goenhance.ai/api/v1/videos/generations', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.goenhance.ai/api/v1/videos/generations",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => 'happyhorse-1-1-ref',
    'prompt' => '[Image 1] walks toward [Image 2] in a neon-lit street',
    'image_urls' => [
        'https://your-cdn.com/a.jpg',
        'https://your-cdn.com/b.jpg'
    ],
    'duration' => 5,
    'resolution' => '720P'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.goenhance.ai/api/v1/videos/generations"

	payload := strings.NewReader("{\n  \"model\": \"happyhorse-1-1-ref\",\n  \"prompt\": \"[Image 1] walks toward [Image 2] in a neon-lit street\",\n  \"image_urls\": [\n    \"https://your-cdn.com/a.jpg\",\n    \"https://your-cdn.com/b.jpg\"\n  ],\n  \"duration\": 5,\n  \"resolution\": \"720P\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.goenhance.ai/api/v1/videos/generations")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"happyhorse-1-1-ref\",\n  \"prompt\": \"[Image 1] walks toward [Image 2] in a neon-lit street\",\n  \"image_urls\": [\n    \"https://your-cdn.com/a.jpg\",\n    \"https://your-cdn.com/b.jpg\"\n  ],\n  \"duration\": 5,\n  \"resolution\": \"720P\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.goenhance.ai/api/v1/videos/generations")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"happyhorse-1-1-ref\",\n  \"prompt\": \"[Image 1] walks toward [Image 2] in a neon-lit street\",\n  \"image_urls\": [\n    \"https://your-cdn.com/a.jpg\",\n    \"https://your-cdn.com/b.jpg\"\n  ],\n  \"duration\": 5,\n  \"resolution\": \"720P\"\n}"

response = http.request(request)
puts response.read_body

{
  "code": 0,
  "msg": "Success",
  "data": {
    "img_uuid": "c12b656c-747a-44fd-9c80-add79b0c52d5"
  }
}

HappyHorse

HappyHorse 1.1 Reference

HappyHorse 1.1 reference-to-video. image_urls is required (1-9 images) — this model blends reference images and does not support pure text-to-video. Reference each image in the prompt as [Image 1], [Image 2], etc.

Pricing — per second of generated video, in tokens (USD at $0.02/token). Limited-time offer: 20% below official pricing.

resolution	tokens/s	our price /s	official /s
720P	5.2	$0.104	$0.13
1080P	7.2	$0.144	$0.18

Example: a 5s 720P video costs 26 tokens.

Returns an img_uuid; poll GET /api/v1/jobs/detail (or use custom_callback_url) to get the generated video.

POST

api

videos

generations

HappyHorse 1.1 Reference

curl --request POST \
  --url https://api.goenhance.ai/api/v1/videos/generations \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "happyhorse-1-1-ref",
  "prompt": "[Image 1] walks toward [Image 2] in a neon-lit street",
  "image_urls": [
    "https://your-cdn.com/a.jpg",
    "https://your-cdn.com/b.jpg"
  ],
  "duration": 5,
  "resolution": "720P"
}
'

import requests

url = "https://api.goenhance.ai/api/v1/videos/generations"

payload = {
    "model": "happyhorse-1-1-ref",
    "prompt": "[Image 1] walks toward [Image 2] in a neon-lit street",
    "image_urls": ["https://your-cdn.com/a.jpg", "https://your-cdn.com/b.jpg"],
    "duration": 5,
    "resolution": "720P"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: 'happyhorse-1-1-ref',
    prompt: '[Image 1] walks toward [Image 2] in a neon-lit street',
    image_urls: ['https://your-cdn.com/a.jpg', 'https://your-cdn.com/b.jpg'],
    duration: 5,
    resolution: '720P'
  })
};

fetch('https://api.goenhance.ai/api/v1/videos/generations', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.goenhance.ai/api/v1/videos/generations",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => 'happyhorse-1-1-ref',
    'prompt' => '[Image 1] walks toward [Image 2] in a neon-lit street',
    'image_urls' => [
        'https://your-cdn.com/a.jpg',
        'https://your-cdn.com/b.jpg'
    ],
    'duration' => 5,
    'resolution' => '720P'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.goenhance.ai/api/v1/videos/generations"

	payload := strings.NewReader("{\n  \"model\": \"happyhorse-1-1-ref\",\n  \"prompt\": \"[Image 1] walks toward [Image 2] in a neon-lit street\",\n  \"image_urls\": [\n    \"https://your-cdn.com/a.jpg\",\n    \"https://your-cdn.com/b.jpg\"\n  ],\n  \"duration\": 5,\n  \"resolution\": \"720P\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.goenhance.ai/api/v1/videos/generations")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"happyhorse-1-1-ref\",\n  \"prompt\": \"[Image 1] walks toward [Image 2] in a neon-lit street\",\n  \"image_urls\": [\n    \"https://your-cdn.com/a.jpg\",\n    \"https://your-cdn.com/b.jpg\"\n  ],\n  \"duration\": 5,\n  \"resolution\": \"720P\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.goenhance.ai/api/v1/videos/generations")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"happyhorse-1-1-ref\",\n  \"prompt\": \"[Image 1] walks toward [Image 2] in a neon-lit street\",\n  \"image_urls\": [\n    \"https://your-cdn.com/a.jpg\",\n    \"https://your-cdn.com/b.jpg\"\n  ],\n  \"duration\": 5,\n  \"resolution\": \"720P\"\n}"

response = http.request(request)
puts response.read_body

{
  "code": 0,
  "msg": "Success",
  "data": {
    "img_uuid": "c12b656c-747a-44fd-9c80-add79b0c52d5"
  }
}

Headers

Authorization

string

Body

application/json

model

enum<string>

required

Model name. Must be happyhorse-1-1-ref.

Available options:

happyhorse-1-1-ref

prompt

string

required

Text prompt. You can reference each image as [Image 1], [Image 2], etc.

image_urls

string<uri>[]

required

Reference image URLs (required, 1-9 images).

Required array length: 1 - 9 elements

ratio

enum<string>

default:16:9

Aspect ratio. Supports 4:5 and 5:4 in addition to the text-to-video set.

Available options:

16:9,

9:16,

3:4,

4:3,

4:5,

5:4,

1:1

duration

integer

default:5

Video duration in seconds (3-15).

Required range: 3 <= x <= 15

resolution

enum<string>

default:720P

Output resolution.

Available options:

720P,

1080P

custom_callback_url

string<uri>

Optional. A publicly accessible HTTPS URL. When the task status changes (processing / success / failed), GoEnhance sends a POST request to this URL. The request body is identical to the response of GET /api/v1/jobs/detail. If your server does not respond with HTTP 200, the notification is retried up to 3 times, with a 3-second timeout per attempt.

Example:

"https://your-server.com/goenhance/callback"

Response

code

integer

required

msg

string

required

data

object

required

Show child attributes

HappyHorse 1.1 Runway

Getting started

API

HappyHorse 1.1 Reference

Headers

Body

Response