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

# Vidu Q3(pro/turbo) 视频生成

>  - 异步处理模式，返回任务ID用于后续查询
- 支持文生视频、图生视频、首尾帧生视频
- 支持 540p / 720p / 1080p 分辨率
- 时长范围 1-16 秒，默认开启音频直出 

<RequestExample>
  ```bash cURL theme={null}
  curl --request POST \
    --url https://api.apimart.ai/v1/videos/generations \
    --header 'Authorization: Bearer <token>' \
    --header 'Content-Type: application/json' \
    --data '{
      "model": "viduq3-pro",
      "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
      "duration": 8,
      "resolution": "1080p",
      "aspect_ratio": "16:9"
    }'
  ```

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

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

  payload = {
      "model": "viduq3-pro",
      "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
      "duration": 8,
      "resolution": "1080p",
      "aspect_ratio": "16:9"
  }

  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://api.apimart.ai/v1/videos/generations";

  const payload = {
    model: "viduq3-pro",
    prompt: "一只猫在弹钢琴，镜头缓缓拉近",
    duration: 8,
    resolution: "1080p",
    aspect_ratio: "16:9"
  };

  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://api.apimart.ai/v1/videos/generations"

      payload := map[string]interface{}{
          "model":        "viduq3-pro",
          "prompt":       "一只猫在弹钢琴，镜头缓缓拉近",
          "duration":     8,
          "resolution":   "1080p",
          "aspect_ratio": "16:9",
      }

      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://api.apimart.ai/v1/videos/generations";

          String payload = """
          {
            "model": "viduq3-pro",
            "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
            "duration": 8,
            "resolution": "1080p",
            "aspect_ratio": "16:9"
          }
          """;

          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://api.apimart.ai/v1/videos/generations";

  $payload = [
      "model" => "viduq3-pro",
      "prompt" => "一只猫在弹钢琴，镜头缓缓拉近",
      "duration" => 8,
      "resolution" => "1080p",
      "aspect_ratio" => "16:9"
  ];

  $ch = curl_init($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://api.apimart.ai/v1/videos/generations")

  payload = {
    model: "viduq3-pro",
    prompt: "一只猫在弹钢琴，镜头缓缓拉近",
    duration: 8,
    resolution: "1080p",
    aspect_ratio: "16:9"
  }

  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://api.apimart.ai/v1/videos/generations")!

  let payload: [String: Any] = [
      "model": "viduq3-pro",
      "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
      "duration": 8,
      "resolution": "1080p",
      "aspect_ratio": "16:9"
  ]

  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://api.apimart.ai/v1/videos/generations";

          var payload = @"{
              ""model"": ""viduq3-pro"",
              ""prompt"": ""一只猫在弹钢琴，镜头缓缓拉近"",
              ""duration"": 8,
              ""resolution"": ""1080p"",
              ""aspect_ratio"": ""16:9""
          }";

          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);
      }
  }
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  {
    "code": 200,
    "data": [
      {
        "status": "submitted",
        "task_id": "task_xxxxxxxxxx"
      }
    ]
  }
  ```

  ```json 400 theme={null}
  {
    "error": {
      "code": 400,
      "message": "请求参数无效",
      "type": "invalid_request_error"
    }
  }
  ```

  ```json 401 theme={null}
  {
    "error": {
      "code": 401,
      "message": "身份验证失败，请检查您的API密钥",
      "type": "authentication_error"
    }
  }
  ```

  ```json 402 theme={null}
  {
    "error": {
      "code": 402,
      "message": "账户余额不足，请充值后再试",
      "type": "payment_required"
    }
  }
  ```

  ```json 429 theme={null}
  {
    "error": {
      "code": 429,
      "message": "请求过于频繁，请稍后再试",
      "type": "rate_limit_error"
    }
  }
  ```

  ```json 500 theme={null}
  {
    "error": {
      "code": 500,
      "message": "服务器内部错误，请稍后重试",
      "type": "server_error"
    }
  }
  ```
</ResponseExample>

## 认证

<ParamField header="Authorization" type="string" required>
  所有接口均需要使用 Bearer Token 进行认证

  获取 API Key：

  访问 [API Key 管理页面](https://apimart.ai/keys) 获取您的 API Key

  使用时在请求头中添加：

  ```
  Authorization: Bearer YOUR_API_KEY
  ```
</ParamField>

## 请求参数

<ParamField body="model" type="string" required>
  视频生成模型名称

  支持的模型：

  * `viduq3-pro` - Vidu Q3 Pro
  * `viduq3-turbo` - Vidu Q3 Turbo
</ParamField>

<ParamField body="prompt" type="string" required>
  文本描述，最长 **2000 个字符**

  文生视频时必填，图生视频和首尾帧模式下可选。

  示例：`"一只猫在弹钢琴，镜头缓缓拉近"`
</ParamField>

<ParamField body="duration" type="integer" default="5">
  视频时长（秒）

  范围：`1` 到 `16`

  默认值：`5`
</ParamField>

<ParamField body="resolution" type="string" default="720p">
  视频分辨率

  可选值：

  * `540p` - 标清
  * `720p` - 高清（默认）
  * `1080p` - 全高清

  默认值：`720p`
</ParamField>

<ParamField body="aspect_ratio" type="string">
  视频宽高比（仅文生视频模式可用）

  可选值：

  * `16:9` - 横屏
  * `9:16` - 竖屏
  * `4:3` - 传统比例
  * `3:4` - 竖版传统比例
  * `1:1` - 方形

  <Warning>
    此参数仅在文生视频模式下可用（不传 `image_urls` 时）。
  </Warning>
</ParamField>

<ParamField body="image_urls" type="array<url>">
  图片 URL 数组，用于图生视频

  系统根据图片数量自动判断生成模式：

  * **0 张**（不传）：文生视频模式
  * **1 张**：图生视频模式（以该图为起始画面）
  * **2 张**：首尾帧生视频模式（第一张=首帧，第二张=尾帧）

  示例：`["https://example.com/photo.jpg"]`

  <Warning>
    * 最多支持 2 张图片
    * 首尾帧模式必须传恰好 2 张图片
    * 只要传入 `image_urls`（无论 1 张还是 2 张），就不能同时设置 `aspect_ratio` 参数，视频比例将由图片自动决定
  </Warning>
</ParamField>

<ParamField body="audio" type="boolean" default="true">
  是否生成音频（对白、音效）

  默认值：`true`

  如需静音视频，设置为 `false`。
</ParamField>

<ParamField body="seed" type="integer">
  种子整数，用于控制生成内容的随机性

  取值范围：`-1` \~ `2^32-1` 之间的整数

  <Note>
    * 相同的请求下，模型收到不同的 seed 值（如：不指定 seed 值或令 seed 取值为 -1，会使用随机数替代），将生成不同的结果
    * 相同的请求下，模型收到相同的 seed 值，会生成类似的结果，但不保证完全一致
  </Note>
</ParamField>

## 自动路由规则

系统根据 `image_urls` 的图片数量自动判断生成模式：

| 图片数     | 模式     | 说明            |
| ------- | ------ | ------------- |
| 0 张（不传） | 文生视频   | 纯文本描述生成       |
| 1 张     | 图生视频   | 以该图为起始画面      |
| 2 张     | 首尾帧生视频 | 第一张=首帧，第二张=尾帧 |

## 参数支持矩阵

| 参数             | 文生视频    | 图生视频    | 首尾帧     |
| -------------- | ------- | ------- | ------- |
| `model`        | ✅ 必填    | ✅ 必填    | ✅ 必填    |
| `prompt`       | ✅ 必填    | 选填      | 选填      |
| `image_urls`   | -       | ✅ 1张    | ✅ 2张    |
| `duration`     | ✅ 1-16秒 | ✅ 1-16秒 | ✅ 1-16秒 |
| `resolution`   | ✅       | ✅       | ✅       |
| `aspect_ratio` | ✅       | -       | -       |
| `audio`        | ✅       | ✅       | ✅       |
| `seed`         | ✅       | ✅       | ✅       |

## 响应

<ResponseField name="code" type="integer">
  响应状态码，成功时为 200
</ResponseField>

<ResponseField name="data" type="array">
  返回数据数组

  <Expandable title="数组元素">
    <ResponseField name="status" type="string">
      任务状态，初始提交时为 `submitted`
    </ResponseField>

    <ResponseField name="task_id" type="string">
      任务唯一标识符，用于查询任务状态和结果
    </ResponseField>
  </Expandable>
</ResponseField>

## 使用场景

### 场景 1：文生视频

```json theme={null}
{
  "model": "viduq3-pro",
  "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
  "duration": 8,
  "resolution": "1080p",
  "aspect_ratio": "16:9"
}
```

### 场景 2：图生视频（单张图片）

```json theme={null}
{
  "model": "viduq3-pro",
  "prompt": "人物缓缓转身微笑",
  "image_urls": ["https://example.com/photo.jpg"],
  "duration": 5,
  "resolution": "720p"
}
```

### 场景 3：首尾帧生视频

```json theme={null}
{
  "model": "viduq3-pro",
  "prompt": "人物从站立缓缓坐下",
  "image_urls": [
    "https://example.com/first.jpg",
    "https://example.com/last.jpg"
  ],
  "duration": 8
}
```

### 场景 4：关闭音频（静音视频）

```json theme={null}
{
  "model": "viduq3-pro",
  "prompt": "日落海景延时摄影",
  "duration": 10,
  "resolution": "1080p",
  "audio": false
}
```

<Note>
  **查询任务结果**

  视频生成为异步任务，提交后会返回 `task_id`。使用 [获取任务状态](/cn/api-reference/tasks/status) 接口查询生成进度和结果。
</Note>