> ## 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.

# VEO3 视频生成

>  - 异步处理模式，返回任务ID用于后续查询
- 支持文本转视频、图生视频等多种生成模式
- 支持4k分辨率
- 生成的视频链接，有效期为24小时，请尽快保存 

> [!NOTE]
>
> **模型名兼容提示**：本接口同时兼容别名 `veo3.1-fast-ext`（等价于 `veo3.1-fast`）、`veo3.1-quality-ext`（等价于 `veo3.1-quality`）、`veo3.1-lite-ext`（等价于 `veo3.1-lite`），别名与主名可互换使用、效果一致。

```bash cURL theme={null}
# model 可填 "veo3.1-fast"，也兼容别名 "veo3.1-fast-ext"
curl --request POST \
  --url https://api.apimart.ai/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "veo3.1-fast",
    "prompt": "海豚在碧蓝海洋中跳跃",
    "duration": 8,
    "aspect_ratio": "16:9",
    "image_urls": ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
  }'
```

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

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

payload = {
    "model": "veo3.1-fast",
    "prompt": "海豚在碧蓝海洋中跳跃",
    "duration": 8,
    "aspect_ratio": "16:9",
    "image_urls": ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
}

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: "veo3.1-fast",
  prompt: "海豚在碧蓝海洋中跳跃",
  duration: 8,
  aspect_ratio: "16:9",
  image_urls: ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
};

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":      "veo3.1-fast",
        "prompt":     "海豚在碧蓝海洋中跳跃",
        "duration":   8,
        "aspect_ratio": "16:9",
        "image_urls":  ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"],
    }

    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": "veo3.1-fast",
          "prompt": "海豚在碧蓝海洋中跳跃",
          "duration": 8,
          "aspect_ratio": "16:9",
          "image_urls": ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
        }
        """;

        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" => "veo3.1-fast",
    "prompt" => "海豚在碧蓝海洋中跳跃",
    "duration" => 8,
    "aspect_ratio" => "16:9",
    "image_urls" => ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
];

$ch = curl_init($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: "veo3.1-fast",
  prompt: "海豚在碧蓝海洋中跳跃",
  duration: 8,
  aspect_ratio: "16:9",
  image_urls: ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
}

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": "veo3.1-fast",
    "prompt": "海豚在碧蓝海洋中跳跃",
    "duration": 8,
    "aspect_ratio": "16:9",
    "image_urls": ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
]

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"": ""veo3.1-fast"",
            ""prompt"": ""海豚在碧蓝海洋中跳跃"",
            ""duration"": 8,
            ""aspect_ratio"": ""16:9"",
            ""image_urls"": [""https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png""]
        }";

        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);
    }
}
```

```c C theme={null}
#include <stdio.h>
#include <curl/curl.h>

int main(void) {
    CURL *curl;
    CURLcode res;

    curl_global_init(CURL_GLOBAL_DEFAULT);
    curl = curl_easy_init();

    if(curl) {
        const char *url = "https://api.apimart.ai/v1/videos/generations";
        const char *payload = "{"
            "\"model\":\"veo3.1-fast\","
            "\"prompt\":\"海豚在碧蓝海洋中跳跃\","
            "\"duration\":8,"
            "\"aspect_ratio\":\"16:9\","
            "\"image_urls\":[\"https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png\"]"
        "}";

        struct curl_slist *headers = NULL;
        headers = curl_slist_append(headers, "Authorization: Bearer <token>");
        headers = curl_slist_append(headers, "Content-Type: application/json");

        curl_easy_setopt(curl, CURLOPT_URL, url);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload);
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

        res = curl_easy_perform(curl);

        if(res != CURLE_OK) {
            fprintf(stderr, "curl_easy_perform() failed: %s\n",
                    curl_easy_strerror(res));
        }

        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }

    curl_global_cleanup();
    return 0;
}
```

```objectivec Objective-C theme={null}
#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSURL *url = [NSURL URLWithString:@"https://api.apimart.ai/v1/videos/generations"];
        
        NSDictionary *payload = @{
            @"model": @"veo3.1-fast",
            @"prompt": @"海豚在碧蓝海洋中跳跃",
            @"duration": @8,
            @"aspect_ratio": @"16:9",
            @"image_urls": @[@"https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
        };
        
        NSError *error;
        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:payload
                                                          options:0
                                                            error:&error];
        
        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
        [request setHTTPMethod:@"POST"];
        [request setValue:@"Bearer <token>" forHTTPHeaderField:@"Authorization"];
        [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
        [request setHTTPBody:jsonData];
        
        NSURLSessionDataTask *task = [[NSURLSession sharedSession] 
            dataTaskWithRequest:request
            completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                if (error) {
                    NSLog(@"Error: %@", error);
                    return;
                }
                NSString *result = [[NSString alloc] initWithData:data 
                                                        encoding:NSUTF8StringEncoding];
                NSLog(@"%@", result);
            }];
        
        [task resume];
        [[NSRunLoop mainRunLoop] run];
    }
    return 0;
}
```

```ocaml OCaml theme={null}
(* Requires cohttp and yojson libraries *)
open Lwt
open Cohttp
open Cohttp_lwt_unix

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

let payload = {|{
  "model": "veo3.1-fast",
  "prompt": "海豚在碧蓝海洋中跳跃",
  "duration": 8,
  "aspect_ratio": "16:9",
  "image_urls": ["https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png"]
}|}

let () =
  let headers = Header.init ()
    |> fun h -> Header.add h "Authorization" "Bearer <token>"
    |> fun h -> Header.add h "Content-Type" "application/json"
  in
  let body = Cohttp_lwt.Body.of_string payload in
  
  let response = Client.post ~headers ~body (Uri.of_string url) >>= fun (resp, body) ->
    body |> Cohttp_lwt.Body.to_string >|= fun body_str ->
    print_endline body_str
  in
  Lwt_main.run response
```

```dart Dart theme={null}
import 'dart:convert';
import 'package:http/http.dart' as http;

void main() async {
  final url = Uri.parse('https://api.apimart.ai/v1/videos/generations');
  
  final payload = {
    'model': 'veo3.1-fast',
    'prompt': '海豚在碧蓝海洋中跳跃',
    'duration': 8,
    'aspect_ratio': '16:9',
    'image_urls': ['https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png']
  };
  
  final response = await http.post(
    url,
    headers: {
      'Authorization': 'Bearer <token>',
      'Content-Type': 'application/json',
    },
    body: jsonEncode(payload),
  );
  
  print(response.body);
}
```

```r R theme={null}
library(httr)
library(jsonlite)

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

payload <- list(
  model = "veo3.1-fast",
  prompt = "海豚在碧蓝海洋中跳跃",
  duration = 8,
  aspect_ratio = "16:9",
  image_urls = c("https://cdn.apimart.ai/doc/9998238783208208-9972597b-255d-4e7e-9649-e6ee38a837aa-image_task_01K88B53MTK41PP5KGDTG2PA5P_0.png")
)

response <- POST(
  url,
  add_headers(
    Authorization = "Bearer <token>",
    `Content-Type` = "application/json"
  ),
  body = toJSON(payload, auto_unbox = TRUE),
  encode = "raw"
)

cat(content(response, "text"))
```

```json 200 theme={null}
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01K8SGYNNNVBQTXNR4MM964S7K"
    }
  ]
}
```

```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 403 theme={null}
{
  "error": {
    "code": 403,
    "message": "访问被禁止，您没有权限访问此资源",
    "type": "permission_error"
  }
}
```

```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"
  }
}
```

```json 502 theme={null}
{
  "error": {
    "code": 502,
    "message": "网关错误，服务器暂时不可用",
    "type": "bad_gateway"
  }
}
```

## 认证

**Authorization** `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
```

## 请求参数

**model** `string` *required* (default: veo3.1-fast)

视频生成模型名称

可用模型：

* `veo3.1-fast` - 快速生成模型，适用于快速预览和迭代（兼容别名 `veo3.1-fast-ext`）
* `veo3.1-quality` - 高质量生成模型，适用于最终制作（兼容别名 `veo3.1-quality-ext`）
* `veo3.1-lite` - 轻量级生成模型，适用于低成本批量生成（兼容别名 `veo3.1-lite-ext`）

Example: `"veo3.1-fast"`

> [!NOTE]
>
> 为兼容旧版调用，别名 `veo3.1-fast-ext`（对应 `veo3.1-fast`）、`veo3.1-quality-ext`（对应 `veo3.1-quality`）、`veo3.1-lite-ext`（对应 `veo3.1-lite`）仍可正常使用。

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

是否在提交视频任务前执行内容审核。

* `true`：使用 `omni-moderation-latest` 审核提示词和输入图片
* `false` 或不传：不发起审核请求，不增加审核成本与延迟（默认）

**prompt** `string` *required*

视频生成的文本描述

**duration** `integer`

视频时长（秒）

固定值：`8`（VEO3 仅支持 8 秒时长）

**aspect\_ratio** `string`

视频宽高比

支持的格式：

* `16:9` (横屏)
* `9:16` (竖屏)

**generation\_type** `string`

视频生成类型

支持的类型：

* `frame` - 帧转视频（FL模式）
* `reference` - 参考图生视频

如果不传此参数，默认根据图片数量自动判断：2张为帧转视频，3张为参考图生视频

**注意：`veo3.1-quality` 模型不支持 `reference` 参考图模式**

> [!WARNING]
>
> `veo3.1-lite` 模型不支持此参数，请勿传入

**image\_urls** `array\<url\>`

用于图生视频的参考图像 URL 数组

支持公网可访问的图片 URL（http\:// 或 https\://）

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

**限制：**

* 最多 3 张图片
* 帧转视频模式：第一张为首帧，第二张为尾帧
* 最大文件大小：10MB
* 支持格式：.jpeg、.jpg、.png、.webp

> [!WARNING]
>
> `veo3.1-lite` 模型不支持此参数，请勿传入

**resolution** `string`

视频分辨率

支持的值：

* `720p`（默认）
* `1080p`
* `4k`

**enable\_gif** `boolean`

启用 GIF 输出格式。默认：false

注意：GIF 和 1080p、4k 分辨率不能同时使用

**official\_fallback** `boolean` (default: false)

是否使用官方渠道兜底

* `false`：不使用（默认）
* `true`：使用官方渠道

> [!WARNING]
>
> `veo3.1-lite` 模型不支持此参数，请勿传入

## Response

**code** `integer`

响应状态码

**data** `array`

返回数据数组

**属性**

**status** `string`

任务状态

* `submitted` - 已提交

**task\_id** `string`

任务唯一标识符


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