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Wan2.7 视频生成

  • 阿里云万相 2.7 视频生成模型(统一入口)
  • 根据传参自动路由:文生视频 / 图生视频(首帧、首尾帧、视频续写)
  • 支持 720P/1080P 分辨率,2-15 秒时长
  • 支持自定义音频(文生模式作背景音乐,图生模式作驱动音频)
请求示例
curl --request POST \
  --url https://26j.cn/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "wan2.7",
    "prompt": "夕阳下的海边公路,慢镜头推进,电影感画面",
    "resolution": "1080P",
    "duration": 8,
    "size": "16:9"
  }'
import requests

url = "https://26j.cn/v1/videos/generations"

payload = {
    "model": "wan2.7",
    "prompt": "夕阳下的海边公路,慢镜头推进,电影感画面",
    "resolution": "1080P",
    "duration": 8,
    "size": "16:9"
}

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

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

print(response.json())
const url = "https://26j.cn/v1/videos/generations";

const payload = {
  model: "wan2.7",
  prompt: "夕阳下的海边公路,慢镜头推进,电影感画面",
  resolution: "1080P",
  duration: 8,
  size: "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));
package main

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

func main() {
    url := "https://26j.cn/v1/videos/generations"

    payload := map[string]interface{}{
        "model":      "wan2.7",
        "prompt":     "夕阳下的海边公路,慢镜头推进,电影感画面",
        "resolution": "1080P",
        "duration":   8,
        "size":       "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))
}
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://26j.cn/v1/videos/generations";

        String payload = """
        {
          "model": "wan2.7",
          "prompt": "夕阳下的海边公路,慢镜头推进,电影感画面",
          "resolution": "1080P",
          "duration": 8,
          "size": "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

$url = "https://26j.cn/v1/videos/generations";

$payload = [
    "model" => "wan2.7",
    "prompt" => "夕阳下的海边公路,慢镜头推进,电影感画面",
    "resolution" => "1080P",
    "duration" => 8,
    "size" => "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;
?>
require 'net/http'
require 'json'
require 'uri'

url = URI("https://26j.cn/v1/videos/generations")

payload = {
  model: "wan2.7",
  prompt: "夕阳下的海边公路,慢镜头推进,电影感画面",
  resolution: "1080P",
  duration: 8,
  size: "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
import Foundation

let url = URL(string: "https://26j.cn/v1/videos/generations")!

let payload: [String: Any] = [
    "model": "wan2.7",
    "prompt": "夕阳下的海边公路,慢镜头推进,电影感画面",
    "resolution": "1080P",
    "duration": 8,
    "size": "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()
using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var url = "https://26j.cn/v1/videos/generations";

        var payload = @"{
            ""model"": ""wan2.7"",
            ""prompt"": ""夕阳下的海边公路,慢镜头推进,电影感画面"",
            ""resolution"": ""1080P"",
            ""duration"": 8,
            ""size"": ""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);
    }
}
响应示例
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01J9HA7JPQ9A0Z6JZ3V8M9W6PZ"
    }
  ]
}
{
  "error": {
    "code": 400,
    "message": "请求参数无效",
    "type": "invalid_request_error"
  }
}
{
  "error": {
    "code": 401,
    "message": "身份验证失败,请检查您的API密钥",
    "type": "authentication_error"
  }
}
{
  "error": {
    "code": 402,
    "message": "账户余额不足,请充值后再试",
    "type": "payment_required"
  }
}
{
  "error": {
    "code": 429,
    "message": "请求过于频繁,请稍后再试",
    "type": "rate_limit_error"
  }
}
{
  "error": {
    "code": 500,
    "message": "服务器内部错误,请稍后重试",
    "type": "server_error"
  }
}

认证

Authorizationstring必填

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 获取您的 API Key

使用时在请求头中添加:

Authorization: Bearer YOUR_API_KEY

模式路由

wan2.7 是文生视频和图生视频的统一入口,后端根据传入参数自动判断模式,两种模式计费完全一致:

条件 路由到 模式说明
image_urls / image_with_roles / video_urls 任一有值 图生视频 首帧生视频 / 首尾帧 / 视频续写
以上参数均不传 文生视频 纯文字描述生成视频

请求参数

modelstring必填

视频生成模型名称,固定为 wan2.7

nsfw_checkboolean默认 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)
promptstring

视频内容描述,最多 5000 字符

  • 文生模式(无图/视频时):必填
  • 图生模式:可选,但建议填写以指导运镜和动作

示例:"一只猫咪在草地上追逐蝴蝶,阳光明媚,慢动作"

image_urlsarray<string>

图片 URL 数组。传入后自动进入图生模式

  • 1 张:首帧生视频
  • 2 张:首尾帧生视频(第 1 张首帧,第 2 张尾帧)

与 image_with_roles 二选一

不可与 video_urls 同时传入

image_with_rolesarray<object>

带角色的图片数组,与 image_urls 二选一,用于精确指定每张图片的角色

每个对象字段:

  • url (string):图片 URL(支持 http/https)
  • role (string):图片角色,first_frame(首帧)/ last_frame(尾帧),默认 first_frame

示例:

[
  { "url": "https://cdn.example.com/start.jpg", "role": "first_frame" },
  { "url": "https://cdn.example.com/end.jpg", "role": "last_frame" }
]

含 first_frame 时不可与 video_urls 同时传入;仅含 last_frame 时可与 video_urls 搭配使用

video_urlsarray<string>

视频 URL 数组。传入后进入视频续写模式(仅取第 1 个视频)

不可与 image_urls、first_frame、audio_url 同时传入;可与 last_frame 搭配使用

视频限制:

  • 格式:mp4、mov
  • 时长:2~10s
  • 分辨率:宽和高的范围为 [240, 4096] 像素
  • 宽高比:1:8 \~ 8:1
  • 文件大小:不超过 100MB
negative_promptstring

反向提示词,描述不希望出现的内容,最多 500 字符

示例:"模糊、变形、低质量"

resolutionstring默认 1080P

视频分辨率

可选值:

  • 720P - 标清
  • 1080P - 高清(默认)
durationinteger默认 5

视频时长(秒)

支持范围:2 \~ 15 秒

默认值:5

sizestring默认 16:9

画面宽高比,仅文生模式生效(无图/视频时)

支持的格式:

  • 16:9 - 横版宽屏(默认)
  • 9:16 - 竖版长屏
  • 1:1 - 正方形
  • 4:3 - 横版
  • 3:4 - 竖版

图生模式下此参数会被忽略,宽高比由输入图片自动决定

audio_urlstring

自定义音频 URL

  • 文生模式:作为视频背景音乐
  • 图生模式:作为驱动音频,同步画面动作

格式:wav / mp3,时长 2-30 秒,文件大小 ≤ 15MB

不可与 video_urls 同时传入

prompt_extendboolean默认 true

是否开启 prompt 智能改写

对较短提示词效果提升明显,但会增加耗时

默认值:true

watermarkboolean默认 false

是否在生成的视频上添加 "AI生成" 水印

  • true:添加水印
  • false:不添加水印(默认)
seedinteger

种子整数,用于控制生成内容的随机性

取值范围:≥0 的整数

  • 相同的请求下,模型收到不同的 seed 值(如:不指定 seed 值),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

响应

codeinteger

响应状态码,成功时为 200

dataarray

返回数据数组

使用场景

场景 1:文生视频(最简请求)

{
  "model": "wan2.7",
  "prompt": "夕阳下的海边公路,慢镜头推进,电影感画面"
}

场景 2:文生视频(完整参数)

{
  "model": "wan2.7",
  "prompt": "一只猫咪在草地上追逐蝴蝶,阳光明媚,慢动作",
  "negative_prompt": "模糊、变形、低质量",
  "resolution": "1080P",
  "duration": 8,
  "size": "16:9",
  "audio_url": "https://cdn.example.com/bgm.mp3",
  "prompt_extend": true,
  "watermark": false,
  "seed": 42
}

场景 3:首帧生视频

{
  "model": "wan2.7",
  "prompt": "人物缓缓站起身,向镜头走来",
  "image_urls": ["https://cdn.example.com/person.jpg"],
  "resolution": "1080P",
  "duration": 8
}

场景 4:首尾帧生视频

{
  "model": "wan2.7",
  "prompt": "镜头从海边缓慢移向山顶",
  "image_urls": [
    "https://cdn.example.com/beach.jpg",
    "https://cdn.example.com/mountain.jpg"
  ],
  "resolution": "1080P",
  "duration": 10
}

传 2 张时:第 1 张为首帧,第 2 张为尾帧。也可用 image_with_roles 精确指定。

场景 5:视频续写

{
  "model": "wan2.7",
  "prompt": "继续向前走,镜头跟随",
  "video_urls": ["https://cdn.example.com/clip.mp4"],
  "resolution": "1080P",
  "duration": 8
}

场景 6:图片 + 驱动音频

{
  "model": "wan2.7",
  "prompt": "人物随音乐节奏运动",
  "image_urls": ["https://cdn.example.com/dancer.jpg"],
  "audio_url": "https://cdn.example.com/beat.mp3",
  "resolution": "1080P",
  "duration": 8
}

模式选择建议

需求 推荐方式
纯文字描述生成视频 仅传 prompt(不传图片/视频)
让图片"动起来" 传 1 张图到 image_urls
控制视频的开始和结束画面 传 2 张图到 image_urls(首帧 + 尾帧)
在已有视频基础上延伸 传视频到 video_urls
让图片跟随音乐律动 传图片 + audio_url

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 接口查询生成进度和结果。

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