> ## Documentation Index
> Fetch the complete documentation index at: https://gccai.heqingsong.uk/llms.txt
> Use this file to discover all available pages before exploring further.

# Pembuatan Video SkyReels V4

>  - Dua tingkat model: Cepat (dioptimalkan untuk kecepatan) dan Std (dioptimalkan untuk kualitas)
- Tiga mode dirutekan otomatis oleh field permintaan: Teks-ke-Video (T2V), Gambar-ke-Video (I2V), Referensi Multimodal (Omni)
- Resolusi 480p / 720p / 1080p, durasi 3 ~ 15 detik
- Fitur lanjutan: frame pertama/akhir/kunci, gambar referensi, video referensi, kolase grid, perpanjangan video, sinkronisasi audio
- Mode pemrosesan async, mengembalikan ID tugas untuk kueri berikutnya 

```bash cURL theme={null}
curl --request POST \
  --url https://gccai.heqingsong.uk/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "skyreels-v4-fast",
    "prompt": "A serene forest at sunset with golden light filtering through the trees.",
    "duration": 5,
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "prompt_optimizer": true
  }'
```

```python Python theme={null}
import requests

url = "https://gccai.heqingsong.uk/v1/videos/generations"

payload = {
    "model": "skyreels-v4-fast",
    "prompt": "A serene forest at sunset with golden light filtering through the trees.",
    "duration": 5,
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "prompt_optimizer": True
}

headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript JavaScript theme={null}
const url = "https://gccai.heqingsong.uk/v1/videos/generations";

const payload = {
  model: "skyreels-v4-fast",
  prompt: "A serene forest at sunset with golden light filtering through the trees.",
  duration: 5,
  resolution: "1080p",
  aspect_ratio: "16:9",
  prompt_optimizer: true
};

const headers = {
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
};

fetch(url, {
  method: "POST",
  headers: headers,
  body: JSON.stringify(payload)
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));
```

```go Go theme={null}
package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io/ioutil"
    "net/http"
)

func main() {
    url := "https://gccai.heqingsong.uk/v1/videos/generations"

    payload := map[string]interface{}{
        "model":            "skyreels-v4-fast",
        "prompt":           "A serene forest at sunset with golden light filtering through the trees.",
        "duration":         5,
        "resolution":       "1080p",
        "aspect_ratio":     "16:9",
        "prompt_optimizer": true,
    }

    jsonData, _ := json.Marshal(payload)

    req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
    req.Header.Set("Authorization", "Bearer <token>")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := ioutil.ReadAll(resp.Body)
    fmt.Println(string(body))
}
```

```java Java theme={null}
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;

public class Main {
    public static void main(String[] args) throws Exception {
        String url = "https://gccai.heqingsong.uk/v1/videos/generations";

        String payload = """
        {
          "model": "skyreels-v4-fast",
          "prompt": "A serene forest at sunset with golden light filtering through the trees.",
          "duration": 5,
          "resolution": "1080p",
          "aspect_ratio": "16:9",
          "prompt_optimizer": true
        }
        """;

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create(url))
            .header("Authorization", "Bearer <token>")
            .header("Content-Type", "application/json")
            .POST(HttpRequest.BodyPublishers.ofString(payload))
            .build();

        HttpResponse<String> response = client.send(request,
            HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());
    }
}
```

```php PHP theme={null}
<?php

$url = "https://gccai.heqingsong.uk/v1/videos/generations";

$payload = [
    "model" => "skyreels-v4-fast",
    "prompt" => "A serene forest at sunset with golden light filtering through the trees.",
    "duration" => 5,
    "resolution" => "1080p",
    "aspect_ratio" => "16:9",
    "prompt_optimizer" => true
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
]);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>
```

```ruby Ruby theme={null}
require 'net/http'
require 'json'
require 'uri'

url = URI("https://gccai.heqingsong.uk/v1/videos/generations")

payload = {
  model: "skyreels-v4-fast",
  prompt: "A serene forest at sunset with golden light filtering through the trees.",
  duration: 5,
  resolution: "1080p",
  aspect_ratio: "16:9",
  prompt_optimizer: true
}

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = "Bearer <token>"
request["Content-Type"] = "application/json"
request.body = payload.to_json

response = http.request(request)
puts response.body
```

```swift Swift theme={null}
import Foundation

let url = URL(string: "https://gccai.heqingsong.uk/v1/videos/generations")!

let payload: [String: Any] = [
    "model": "skyreels-v4-fast",
    "prompt": "A serene forest at sunset with golden light filtering through the trees.",
    "duration": 5,
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "prompt_optimizer": true
]

var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Bearer <token>", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = try? JSONSerialization.data(withJSONObject: payload)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let error = error {
        print("Error: \(error)")
        return
    }

    if let data = data, let responseString = String(data: data, encoding: .utf8) {
        print(responseString)
    }
}

task.resume()
```

```csharp C# theme={null}
using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var url = "https://gccai.heqingsong.uk/v1/videos/generations";

        var payload = @"{
            ""model"": ""skyreels-v4-fast"",
            ""prompt"": ""A serene forest at sunset with golden light filtering through the trees."",
            ""duration"": 5,
            ""resolution"": ""1080p"",
            ""aspect_ratio"": ""16:9"",
            ""prompt_optimizer"": true
        }";

        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer <token>");

        var content = new StringContent(payload, Encoding.UTF8, "application/json");
        var response = await client.PostAsync(url, content);
        var result = await response.Content.ReadAsStringAsync();

        Console.WriteLine(result);
    }
}
```

```json 200 theme={null}
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01KPEY5H3NQ2W8D7T6VB3F9GR4"
    }
  ]
}
```

```json 400 theme={null}
{
  "error": {
    "code": 400,
    "message": "Invalid request parameters",
    "type": "invalid_request_error"
  }
}
```

```json 401 theme={null}
{
  "error": {
    "code": 401,
    "message": "Authentication failed, please check your API key",
    "type": "authentication_error"
  }
}
```

```json 402 theme={null}
{
  "error": {
    "code": 402,
    "message": "Insufficient account balance, please top up and try again",
    "type": "payment_required"
  }
}
```

```json 422 theme={null}
{
  "error": {
    "code": 422,
    "message": "Parameter conflict or invalid value (e.g. I2V and Omni fields passed simultaneously)",
    "type": "invalid_request_error"
  }
}
```

```json 429 theme={null}
{
  "error": {
    "code": 429,
    "message": "Too many requests, please try again later",
    "type": "rate_limit_error"
  }
}
```

```json 500 theme={null}
{
  "error": {
    "code": 500,
    "message": "Internal server error, please retry later",
    "type": "server_error"
  }
}
```

## Otorisasi

**Authorization** `string` *required*

Semua endpoint API memerlukan autentikasi Bearer Token

Dapatkan API Key Anda:

Kunjungi [Halaman Manajemen API Key](https://gccai.heqingsong.uk/keys) untuk mendapatkan API Key Anda

Tambahkan ke header permintaan:

```
Authorization: Bearer YOUR_API_KEY
```

## Mode Pembuatan

SkyReels V4 otomatis merutekan ke mode yang benar berdasarkan field permintaan — **tanpa `mode` field diperlukan**:

| Mode | Pemicu | Kemampuan |
| - | - | - |
| **T2V** (Teks-ke-Video) | Hanya `prompt` + field umum | Pembuatan murni berbasis teks |
| **I2V** (Gambar-ke-Video) | Salah satu dari `first_frame_image` / `end_frame_image` / `mid_frame_images` | Kontrol frame pertama/akhir/kunci |
| **Omni** (Referensi Multimodal) | Salah satu dari `ref_images` / `ref_videos` | Subjek referensi, kolase grid, gerakan referensi, perpanjangan video, sinkronisasi audio |

> [!WARNING]
>
> **Saling eksklusif secara ketat**: Field I2V (`first_frame_image` / `end_frame_image` / `mid_frame_images`) dan field Omni (`ref_images` / `ref_videos`) tidak dapat digunakan bersama, jika tidak akan mengembalikan 422.

> [!NOTE]
>
> **Mekanisme `@tag`**: Saat menggunakan `mid_frame_images` / `ref_images` / `ref_videos`, setiap elemen harus mendeklarasikan `tag` yang dimulai dengan `@` (misalnya, `@image1`, `@Actor-1`, `@video1`), dan `tag` **harus muncul di `prompt`**.
>
> Anggap `prompt` sebagai "skrip" dan `tag` sebagai "penunjuk karakter" ke aset tertentu (gambar / video). Misalnya, prompt seperti `"@Actor-1 walks into the scene of @video1"` menginstruksikan sistem untuk memasukkan gambar referensi subjek yang ditautkan ke `@Actor-1` dan gerakan referensi yang ditautkan ke `@video1` ke dalam proses pembuatan.

## Parameter Permintaan

### Field Umum

**model** `string` *required*

Tersedia dua tingkat model:

| Model | Posisi | Kasus Penggunaan |
| - | - | - |
| `skyreels-v4-fast` | Prioritas kecepatan | Pratinjau cepat, pembuatan batch, konten harian |
| `skyreels-v4-std` | Prioritas kualitas (25\~30% lebih mahal daripada Cepat) | Shot penting, kebutuhan detail tinggi, pengiriman formal |

> [!WARNING]
>
> **Field `model` harus disediakan secara eksplisit — tidak ada nilai default.**

> [!TIP]
>
> **Harga sangat terkait dengan resolusi dan apakah `ref_videos` digunakan**: 1080p jauh lebih mahal daripada 480p / 720p; tier dengan `ref_videos` (input video) berbiaya \~1,5 \~ 2× dibandingkan yang tanpa itu. Output audio dan video secara bersamaan belum didukung.

**nsfw\_check** `boolean` (default: false)

Menentukan apakah moderasi konten dijalankan sebelum tugas video dikirim.

* `true`: periksa prompt dan gambar input dengan `omni-moderation-latest`
* `false` atau dihilangkan: tidak mengirim permintaan moderasi, tanpa biaya atau latensi moderasi tambahan (default)

**prompt** `string` *required*

Prompt teks, maksimum **1280 tokens**

Jelaskan adegan, subjek, aksi, dan gaya secara detail untuk hasil pembuatan yang lebih baik.

Saat menggunakan `ref_images` / `ref_videos` / `mid_frame_images`, `prompt` **harus berisi** `@tag` terkait (misalnya, `@Actor-1`, `@video1`, `@image1`).

Contoh: `"@Actor-1 walks through a neon-lit street at night."`

**duration** `integer` (default: 5)

Durasi video output (detik)

* Rentang: `[3, 15]`
* Default: `5`

> [!WARNING]
>
> Saat `ref_videos.type=reference` disediakan, `duration` ditimpa oleh durasi video referensi (maks. 10 detik).

**resolution** `string` (default: 1080p)

Resolusi video

Opsi:

* `480p`
* `720p`
* `1080p` (default)

**aspect\_ratio** `string` (default: 16:9)

Rasio aspek

Opsi:

* `16:9` (default)
* `4:3`
* `1:1`
* `9:16`
* `3:4`

> [!WARNING]
>
> **`aspect_ratio` diabaikan dalam mode I2V** (rasio output ditentukan oleh gambar input); juga diabaikan saat Omni dikombinasikan dengan `ref_videos`.

**prompt\_optimizer** `boolean` (default: true)

Apakah mengoptimalkan prompt secara otomatis

Jika diaktifkan, sistem otomatis mengoptimalkan prompt Anda untuk hasil pembuatan yang lebih baik.

### Field Khusus I2V

**first\_frame\_image** `string`

URL gambar frame pertama (jpg / jpeg / png / gif / bmp)

Saat disediakan, gambar ini digunakan sebagai **frame awal** video.

**end\_frame\_image** `string`

URL gambar frame akhir (jpg / jpeg / png / gif / bmp)

Saat disediakan, gambar ini digunakan sebagai **frame akhir** video. Dapat dikombinasikan dengan `first_frame_image` untuk kontrol frame pertama dan terakhir.

**mid\_frame\_images** `object[]`

Daftar keyframe tengah, **hingga 6**. Setiap elemen memiliki struktur berikut:

**mid\_frame\_images elemen**

**tag** `string` *required*

Harus dimulai dengan `@` dan muncul di `prompt`, misalnya `@image1`

**image\_url** `string` *required*

URL gambar (jpg / jpeg / png / gif / bmp)

**time\_stamp** `integer` (default: -1)

Timestamp kemunculan (detik). Default `-1` (tidak ditentukan); jika ditentukan, harus memenuhi `0 < time_stamp < duration`.

### Field Khusus Omni

**ref\_images** `object[]`

Daftar gambar referensi (semua elemen harus memiliki `type`). Setiap elemen memiliki struktur berikut:

**ref\_images elemen**

**tag** `string` *required*

Harus dimulai dengan `@` dan muncul di `prompt`, misalnya `@Actor-1`

**type** `string` *required*

Tipe referensi:

* `image` - Gambar referensi biasa (panjang daftar 1~~3; panjang setiap `image_urls` 1~~5)
* `grid` - Kolase grid, yaitu satu gambar yang terdiri dari beberapa tile (misalnya 2×2, 3×3); panjang daftar harus = 1, `image_urls` harus 1 gambar

**image\_urls** `string[]` *required*

Array URL gambar

**audio\_url** `string`

URL audio suara (**hanya didukung saat `type=image`**, durasi audio ≤ 15 detik)

**ref\_videos** `object[]`

Daftar video referensi, **hingga 1**. Setiap elemen memiliki struktur berikut:

**ref\_videos elemen**

**tag** `string` *required*

Harus dimulai dengan `@` dan muncul di `prompt`, misalnya `@video1`

**type** `string` *required*

Tipe referensi:

* `reference` - Referensi gerakan / subjek, **menimpa `duration`** (mengikuti durasi video referensi, maks. 10 detik), membawa audio video input secara default; **dapat dikombinasikan dengan `ref_images.type=image`**
* `extend` - Perpanjangan video, ditagih berdasarkan `duration`; **tidak dapat dikombinasikan dengan `ref_images`**

**video\_url** `string` *required*

URL video (MP4 / MOV, durasi ≤ 15 detik)

## Skenario yang Didukung

Skenario berikut **didukung oleh keduanya** `skyreels-v4-fast` dan `skyreels-v4-std`:

| Skenario | Mode | Field Wajib | Kasus Penggunaan Umum |
| - | - | - | - |
| Teks-ke-Video | T2V | `prompt` | Murni berbasis teks, shot konsep cepat |
| Gambar-ke-Video - Frame Pertama | I2V | `first_frame_image` | Still-to-video dengan frame awal yang ditentukan |
| Gambar-ke-Video - Frame Akhir | I2V | `end_frame_image` | Menentukan frame penutup |
| Gambar-ke-Video - Keyframes | I2V | `mid_frame_images` (1 \~ 6) | Frame pertama + akhir + tengah untuk pengaturan tempo yang presisi |
| Omni Subjek Tunggal/Multi | Omni | `ref_images` (`type=image`) | Konsistensi karakter, framing multi-subjek |
| Omni Kolase Grid | Omni | `ref_images` (`type=grid`, 1 gambar) | Video proses langkah demi langkah (tutorial, resep, demo) |
| Omni Gerakan Referensi | Omni | `ref_videos` (`type=reference`) | Mereplikasi gerakan, subjek, atau gaya video referensi |
| Omni Perpanjangan Video | Omni | `ref_videos` (`type=extend`) | Melanjutkan video yang ada dengan konten baru |
| Omni Sinkronisasi Audio | Omni | `ref_images` (`type=image`) + `audio_url` | Narasi manusia digital, lip-sync berbasis audio |

## Batasan Parameter

Melanggar salah satu di bawah ini akan menyebabkan permintaan ditolak dengan respons **422**, **tidak ada biaya yang dikenakan**:

| Parameter | Batasan |
| - | - |
| `prompt` | Maks. 1280 token |
| `duration` | `[3, 15]` detik; ditimpa oleh durasi video referensi (maks. 10 dtk) saat `ref_videos.type=reference` |
| `resolution` | Hanya `480p` / `720p` / `1080p` |
| `aspect_ratio` | `16:9` / `4:3` / `1:1` / `9:16` / `3:4`; diabaikan dalam I2V; diabaikan saat Omni membawa `ref_videos` |
| `mid_frame_images` | Hingga 6; `time_stamp` harus `-1` atau dalam `(0, duration)` |
| `ref_images` secara keseluruhan | Semua elemen harus berbagi `type` yang sama; tidak dapat berdampingan dengan field I2V |
| `ref_images.type=grid` | Panjang daftar harus = 1; `image_urls` harus 1 gambar |
| `ref_images.type=image` | Panjang daftar 1 \~ 3; panjang setiap `image_urls` 1 \~ 5 |
| `ref_images.audio_url` | Hanya didukung saat `type=image`, audio ≤ 15 detik |
| `ref_videos` | Hingga 1; `video_url` MP4 / MOV, ≤ 15 detik |
| `ref_videos.type=reference` | Menimpa `duration` yang diminta (maks. 10 dtk), dapat dikombinasikan dengan `ref_images.type=image`, membawa audio video input secara default |
| `ref_videos.type=extend` | Ditagih berdasarkan `duration` yang diminta; **tidak dapat dikombinasikan dengan `ref_images`** |
| Field `tag` | Harus dimulai dengan `@` dan muncul di `prompt` |
| Eksklusi I2V / Omni | Field I2V dan field Omni tidak dapat digunakan bersama |

## Respons

**code** `integer`

Kode status respons, 200 jika berhasil

**data** `array`

Array data respons

**Elemen Array**

**status** `string`

Status tugas, `submitted` saat pertama kali dikirim

**task\_id** `string`

Pengidentifikasi tugas unik untuk mengueri status dan hasil tugas

## Contoh Permintaan

### Kasus 1: Teks-ke-Video (Minimal)

```json theme={null}
{
  "model": "skyreels-v4-fast",
  "prompt": "A serene forest at sunset with golden light filtering through the trees."
}
```

### Kasus 2: Teks-ke-Video (Parameter Lengkap)

```json theme={null}
{
  "model": "skyreels-v4-std",
  "prompt": "A serene forest at sunset.",
  "duration": 5,
  "resolution": "720p",
  "aspect_ratio": "16:9",
  "prompt_optimizer": true
}
```

### Kasus 3: Gambar-ke-Video - Frame Pertama

```json theme={null}
{
  "model": "skyreels-v4-fast",
  "prompt": "Slowly pull the camera back to reveal the entire scene.",
  "first_frame_image": "https://example.com/start.png",
  "duration": 5
}
```

### Kasus 4: Gambar-ke-Video - Frame Pertama/Akhir + Keyframe Tengah

```json theme={null}
{
  "model": "skyreels-v4-std",
  "prompt": "The King summons a flying dragon. @image1 The dragon lowers. The King mounts and flies away.",
  "duration": 8,
  "resolution": "1080p",
  "first_frame_image": "https://example.com/k2v_0.png",
  "end_frame_image":   "https://example.com/k2v_2.png",
  "mid_frame_images": [
    { "tag": "@image1", "image_url": "https://example.com/k2v_1.png", "time_stamp": 3 }
  ]
}
```

### Kasus 5: Omni - Subjek Referensi Tunggal

```json theme={null}
{
  "model": "skyreels-v4-fast",
  "prompt": "@Actor-1 walks through a neon-lit street at night.",
  "ref_images": [
    { "tag": "@Actor-1", "type": "image", "image_urls": ["https://example.com/actor.jpg"] }
  ]
}
```

### Kasus 6: Omni - Multi-Subjek + Video Gerakan Referensi

```json theme={null}
{
  "model": "skyreels-v4-fast",
  "prompt": "The man from @image_1 imitates the move on the left in @video_1. The woman from @image_2 imitates the right side.",
  "duration": 5,
  "ref_images": [
    { "tag": "@image_1", "type": "image", "image_urls": ["https://example.com/a.png"] },
    { "tag": "@image_2", "type": "image", "image_urls": ["https://example.com/b.png"] }
  ],
  "ref_videos": [
    { "tag": "@video_1", "type": "reference", "video_url": "https://example.com/motion.mp4" }
  ]
}
```

> [!WARNING]
>
> Kasus ini menggunakan `ref_videos.type=reference`, sehingga \*\* `duration` akan ditimpa oleh durasi aktual video referensi\*\* (maks. 10 detik). Meskipun `"duration": 5` dikirim di sini, durasi video final mengikuti video referensi.

### Kasus 7: Omni - Kolase Grid

```json theme={null}
{
  "model": "skyreels-v4-fast",
  "prompt": "Create a video showing how to make tomato and egg noodles based on @image1.",
  "ref_images": [
    { "tag": "@image1", "type": "grid", "image_urls": ["https://example.com/recipe_grid.png"] }
  ]
}
```

### Kasus 8: Omni - Perpanjangan Video (extend)

```json theme={null}
{
  "model": "skyreels-v4-fast",
  "prompt": "Video extended @video1, someone walks over and sits on the sofa.",
  "duration": 8,
  "ref_videos": [
    { "tag": "@video1", "type": "extend", "video_url": "https://example.com/source.mp4" }
  ]
}
```

### Kasus 9: Omni - Sinkronisasi Audio (Berbasis Suara)

```json theme={null}
{
  "model": "skyreels-v4-std",
  "prompt": "@Actor-1 speaks with a calm tone.",
  "ref_images": [
    {
      "tag": "@Actor-1",
      "type": "image",
      "image_urls": ["https://example.com/actor.jpg"],
      "audio_url":  "https://example.com/voice.mp3"
    }
  ]
}
```

> [!NOTE]
>
> **Kueri Hasil Tugas**
>
> Pembuatan video adalah tugas asinkron yang mengembalikan `task_id` saat dikirim. Gunakan endpoint [Dapatkan Status Tugas](https://gccai.heqingsong.uk/id/api-reference/tasks/status.md) untuk mengueri progres dan hasil pembuatan.


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