HappyHorse 1.1

curl --request POST \
  --url https://api.goenhance.ai/api/v1/videos/generations \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "happyhorse-1-1",
  "prompt": "A knight rides across a windswept plain at golden hour",
  "duration": 5,
  "resolution": "720P",
  "ratio": "16:9"
}
'

import requests

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

payload = {
    "model": "happyhorse-1-1",
    "prompt": "A knight rides across a windswept plain at golden hour",
    "duration": 5,
    "resolution": "720P",
    "ratio": "16:9"
}
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',
    prompt: 'A knight rides across a windswept plain at golden hour',
    duration: 5,
    resolution: '720P',
    ratio: '16:9'
  })
};

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',
    'prompt' => 'A knight rides across a windswept plain at golden hour',
    'duration' => 5,
    'resolution' => '720P',
    'ratio' => '16:9'
  ]),
  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\",\n  \"prompt\": \"A knight rides across a windswept plain at golden hour\",\n  \"duration\": 5,\n  \"resolution\": \"720P\",\n  \"ratio\": \"16:9\"\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\",\n  \"prompt\": \"A knight rides across a windswept plain at golden hour\",\n  \"duration\": 5,\n  \"resolution\": \"720P\",\n  \"ratio\": \"16:9\"\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\",\n  \"prompt\": \"A knight rides across a windswept plain at golden hour\",\n  \"duration\": 5,\n  \"resolution\": \"720P\",\n  \"ratio\": \"16:9\"\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

HappyHorse 1.1 text-to-video and image-to-video. Pass image_url for a first-frame image, or omit it for pure text-to-video.

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

curl --request POST \
  --url https://api.goenhance.ai/api/v1/videos/generations \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "happyhorse-1-1",
  "prompt": "A knight rides across a windswept plain at golden hour",
  "duration": 5,
  "resolution": "720P",
  "ratio": "16:9"
}
'

import requests

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

payload = {
    "model": "happyhorse-1-1",
    "prompt": "A knight rides across a windswept plain at golden hour",
    "duration": 5,
    "resolution": "720P",
    "ratio": "16:9"
}
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',
    prompt: 'A knight rides across a windswept plain at golden hour',
    duration: 5,
    resolution: '720P',
    ratio: '16:9'
  })
};

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',
    'prompt' => 'A knight rides across a windswept plain at golden hour',
    'duration' => 5,
    'resolution' => '720P',
    'ratio' => '16:9'
  ]),
  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\",\n  \"prompt\": \"A knight rides across a windswept plain at golden hour\",\n  \"duration\": 5,\n  \"resolution\": \"720P\",\n  \"ratio\": \"16:9\"\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\",\n  \"prompt\": \"A knight rides across a windswept plain at golden hour\",\n  \"duration\": 5,\n  \"resolution\": \"720P\",\n  \"ratio\": \"16:9\"\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\",\n  \"prompt\": \"A knight rides across a windswept plain at golden hour\",\n  \"duration\": 5,\n  \"resolution\": \"720P\",\n  \"ratio\": \"16:9\"\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.

Available options:

happyhorse-1-1

prompt

string

required

Text prompt describing the video.

image_url

string<uri>

Optional first-frame image URL. If provided, runs image-to-video (aspect ratio follows the image); otherwise text-to-video. Requirements: JPEG/PNG/WEBP, >=300px, ratio 1:2.5-2.5:1, <10MB.

ratio

enum<string>

default:16:9

Aspect ratio. Text-to-video only; ignored when image_url is provided.

Available options:

16:9,

9:16,

1:1,

4:3,

3:4

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

Grok Imagine 1.5 HappyHorse 1.1 Reference

Getting started

API

HappyHorse 1.1

Headers

Body

Response