Kling 2.6

curl --request POST \
  --url https://api.goenhance.ai/api/v1/videos/generations \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "kling-2-6",
  "prompt": "A girl on a train looking out of the window, @1 whispers softly",
  "image_url": "https://example.com/first-frame.png",
  "resolution": "1080p",
  "generate_audio": true,
  "voice_ids": [
    "891495440020668439"
  ],
  "duration": 5
}
'

import requests

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

payload = {
    "model": "kling-2-6",
    "prompt": "A girl on a train looking out of the window, @1 whispers softly",
    "image_url": "https://example.com/first-frame.png",
    "resolution": "1080p",
    "generate_audio": True,
    "voice_ids": ["891495440020668439"],
    "duration": 5
}
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: 'kling-2-6',
    prompt: 'A girl on a train looking out of the window, @1 whispers softly',
    image_url: 'https://example.com/first-frame.png',
    resolution: '1080p',
    generate_audio: true,
    voice_ids: ['891495440020668439'],
    duration: 5
  })
};

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' => 'kling-2-6',
    'prompt' => 'A girl on a train looking out of the window, @1 whispers softly',
    'image_url' => 'https://example.com/first-frame.png',
    'resolution' => '1080p',
    'generate_audio' => true,
    'voice_ids' => [
        '891495440020668439'
    ],
    'duration' => 5
  ]),
  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\": \"kling-2-6\",\n  \"prompt\": \"A girl on a train looking out of the window, @1 whispers softly\",\n  \"image_url\": \"https://example.com/first-frame.png\",\n  \"resolution\": \"1080p\",\n  \"generate_audio\": true,\n  \"voice_ids\": [\n    \"891495440020668439\"\n  ],\n  \"duration\": 5\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\": \"kling-2-6\",\n  \"prompt\": \"A girl on a train looking out of the window, @1 whispers softly\",\n  \"image_url\": \"https://example.com/first-frame.png\",\n  \"resolution\": \"1080p\",\n  \"generate_audio\": true,\n  \"voice_ids\": [\n    \"891495440020668439\"\n  ],\n  \"duration\": 5\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\": \"kling-2-6\",\n  \"prompt\": \"A girl on a train looking out of the window, @1 whispers softly\",\n  \"image_url\": \"https://example.com/first-frame.png\",\n  \"resolution\": \"1080p\",\n  \"generate_audio\": true,\n  \"voice_ids\": [\n    \"891495440020668439\"\n  ],\n  \"duration\": 5\n}"

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

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

Kling

Kling 2.6

Kling 2.6 text-to-video and image-to-video, with optional native audio and designated voices.

Pricing — per second of generated video, in tokens (USD at $0.02/token). Same as the official rate:

configuration	720p	1080p
No native audio	2.1 tokens/s ($0.042)	3.5 tokens/s ($0.07)
Native audio	not available	7 tokens/s ($0.14)
Native audio + voice	not available	8.4 tokens/s ($0.168)

⚠️ A designated voice is a separate price tier, not a free extra — it is 20% above plain native audio.

⚠️ Three upstream constraints interact, and this endpoint rejects impossible combinations up front (before any tokens are deducted):

voice_ids requires generate_audio: true — a designated voice cannot be silent.
generate_audio: true requires resolution: 1080p — Kling publishes no 720p audio tier.
A first and last frame requires resolution: 720p.

Rules 2 and 3 are mutually exclusive: on Kling 2.6 you cannot combine a first+last frame pair with native audio or voices. Drop image_end_url, or drop generate_audio.

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

POST

api

videos

generations

Kling 2.6

curl --request POST \
  --url https://api.goenhance.ai/api/v1/videos/generations \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "kling-2-6",
  "prompt": "A girl on a train looking out of the window, @1 whispers softly",
  "image_url": "https://example.com/first-frame.png",
  "resolution": "1080p",
  "generate_audio": true,
  "voice_ids": [
    "891495440020668439"
  ],
  "duration": 5
}
'

import requests

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

payload = {
    "model": "kling-2-6",
    "prompt": "A girl on a train looking out of the window, @1 whispers softly",
    "image_url": "https://example.com/first-frame.png",
    "resolution": "1080p",
    "generate_audio": True,
    "voice_ids": ["891495440020668439"],
    "duration": 5
}
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: 'kling-2-6',
    prompt: 'A girl on a train looking out of the window, @1 whispers softly',
    image_url: 'https://example.com/first-frame.png',
    resolution: '1080p',
    generate_audio: true,
    voice_ids: ['891495440020668439'],
    duration: 5
  })
};

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' => 'kling-2-6',
    'prompt' => 'A girl on a train looking out of the window, @1 whispers softly',
    'image_url' => 'https://example.com/first-frame.png',
    'resolution' => '1080p',
    'generate_audio' => true,
    'voice_ids' => [
        '891495440020668439'
    ],
    'duration' => 5
  ]),
  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\": \"kling-2-6\",\n  \"prompt\": \"A girl on a train looking out of the window, @1 whispers softly\",\n  \"image_url\": \"https://example.com/first-frame.png\",\n  \"resolution\": \"1080p\",\n  \"generate_audio\": true,\n  \"voice_ids\": [\n    \"891495440020668439\"\n  ],\n  \"duration\": 5\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\": \"kling-2-6\",\n  \"prompt\": \"A girl on a train looking out of the window, @1 whispers softly\",\n  \"image_url\": \"https://example.com/first-frame.png\",\n  \"resolution\": \"1080p\",\n  \"generate_audio\": true,\n  \"voice_ids\": [\n    \"891495440020668439\"\n  ],\n  \"duration\": 5\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\": \"kling-2-6\",\n  \"prompt\": \"A girl on a train looking out of the window, @1 whispers softly\",\n  \"image_url\": \"https://example.com/first-frame.png\",\n  \"resolution\": \"1080p\",\n  \"generate_audio\": true,\n  \"voice_ids\": [\n    \"891495440020668439\"\n  ],\n  \"duration\": 5\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 kling-2-6.

Available options:

kling-2-6

prompt

string

required

Text prompt. Max 2500 characters. Use @1 / @2 to make a designated voice speak.

Maximum string length: 2500

image_url

string<uri>

Optional. First-frame image URL. Omit for text-to-video.

image_end_url

string<uri>

Optional. Last-frame image URL. Requires image_url, and forces resolution: 720p.

voice_ids

string[]

Optional. Up to 2 voice ids from Kling's Voice Management API (or a system preset). Order is the @1 / @2 numbering. Requires image_url (text-to-video has no materials) and generate_audio: true. voice_id is accepted for a single value.

Maximum array length: 2

duration

enum<integer>

default:5

Video duration in seconds. Only 5 or 10.

Available options:

5,

10

resolution

enum<string>

default:720p

Output resolution. No 4K tier. quality is accepted as a compatible alias.

Available options:

720p,

1080p

ratio

enum<string>

default:16:9

Output aspect ratio. Text-to-video only — with a first frame the image decides. aspect_ratio is accepted as a compatible alias.

Available options:

16:9,

9:16,

1:1

generate_audio

boolean

default:false

Generate a native audio track matching the visuals. Requires resolution: 1080p, and costs more per second.

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