Seedream-4.5 图像生成

异步处理模式，返回任务ID用于后续查询
支持文本转图片、图生图、图像编辑等多种生成模式
生成的图像链接，有效期为24小时，请尽快保存

curl --request POST \
  --url https://tokenflash.cn/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "doubao-seedance-4-5",
    "prompt": "可爱的熊猫在竹林中玩耍",
    "size": "1:1",
    "resolution": "2K",
    "n": 1,
    "image_urls": [
      "https://cdn.apimart.ai/doc/1761215838466614297_9852.png"
    ],
  }'

import requests

url = "https://tokenflash.cn/v1/images/generations"

payload = {
    "model": "doubao-seedance-4-5",
    "prompt": "可爱的熊猫在竹林中玩耍",
    "size": "1:1",
    "resolution": "2K",
    "n": 1,
    "image_urls": [
        "https://cdn.apimart.ai/doc/1761215838466614297_9852.png"
    ],
}

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

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

print(response.json())

const url = "https://tokenflash.cn/v1/images/generations";

const payload = {
  model: "doubao-seedance-4-5",
  prompt: "可爱的熊猫在竹林中玩耍",
  size: "1:1",
  resolution: "2K",
  n: 1,
  image_urls: [
    "https://cdn.apimart.ai/doc/1761215838466614297_9852.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));

package main

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

func main() {
    url := "https://tokenflash.cn/v1/images/generations"

    payload := map[string]interface{}{
        "model":  "doubao-seedance-4-5",
        "prompt": "可爱的熊猫在竹林中玩耍",
        "size":       "1:1",
        "resolution": "2K",
        "n":          1,
        "image_urls": []string{
            "https://cdn.apimart.ai/doc/1761215838466614297_9852.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))
}

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://tokenflash.cn/v1/images/generations";

        String payload = """
        {
          "model": "doubao-seedance-4-5",
          "prompt": "可爱的熊猫在竹林中玩耍",
          "size": "1:1",
          "resolution": "2K",
          "n": 1,
          "image_urls": [
            "https://cdn.apimart.ai/doc/1761215838466614297_9852.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

$url = "https://tokenflash.cn/v1/images/generations";

$payload = [
    "model" => "doubao-seedance-4-5",
    "prompt" => "可爱的熊猫在竹林中玩耍",
    "size" => "1:1",
    "resolution" => "2K",
    "n" => 1,
    "image_urls" => [
        "https://cdn.apimart.ai/doc/1761215838466614297_9852.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;
?>

require 'net/http'
require 'json'
require 'uri'

url = URI("https://tokenflash.cn/v1/images/generations")

payload = {
  model: "doubao-seedance-4-5",
  prompt: "可爱的熊猫在竹林中玩耍",
  size: "1:1",
  resolution: "2K",
  n: 1,
  image_urls: [
    "https://cdn.apimart.ai/doc/1761215838466614297_9852.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

import Foundation

let url = URL(string: "https://tokenflash.cn/v1/images/generations")!

let payload: [String: Any] = [
    "model": "doubao-seedance-4-5",
    "prompt": "可爱的熊猫在竹林中玩耍",
    "size": "1:1",
    "resolution": "2K",
    "n": 1,
    "image_urls": [
        "https://cdn.apimart.ai/doc/1761215838466614297_9852.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()

using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

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

        var payload = @"{
            ""model"": ""doubao-seedance-4-5"",
            ""prompt"": ""可爱的熊猫在竹林中玩耍"",
            ""size"": ""1:1"",
            ""resolution"": ""2K"",
            ""n"": 1,
            ""image_urls"": [
                ""https://cdn.apimart.ai/doc/1761215838466614297_9852.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);
    }
}

#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://tokenflash.cn/v1/images/generations";
        const char *payload = "{"
            "\"model\":\"doubao-seedance-4-5\","
            "\"prompt\":\"可爱的熊猫在竹林中玩耍\","
            "\"size\":\"1:1\","
            "\"resolution\":\"2K\","
            "\"n\":1,"
            "\"image_urls\":[\"https://cdn.apimart.ai/doc/1761215838466614297_9852.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;
}

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSURL *url = [NSURL URLWithString:@"https://tokenflash.cn/v1/images/generations"];
        
        NSDictionary *payload = @{
            @"model": @"doubao-seedance-4-5",
            @"prompt": @"可爱的熊猫在竹林中玩耍",
            @"size": @"1:1",
            @"resolution": @"2K",
            @"n": @1,
            @"image_urls": @[
                @"https://cdn.apimart.ai/doc/1761215838466614297_9852.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;
}

(* Requires cohttp and yojson libraries *)
open Lwt
open Cohttp
open Cohttp_lwt_unix

let url = "https://tokenflash.cn/v1/images/generations"

let payload = {|{
  "model": "doubao-seedance-4-5",
  "prompt": "可爱的熊猫在竹林中玩耍",
  "size": "1:1",
  "resolution": "2K",
  "n": 1,
  "image_urls": [
    "https://cdn.apimart.ai/doc/1761215838466614297_9852.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

import 'dart:convert';
import 'package:http/http.dart' as http;

void main() async {
  final url = Uri.parse('https://tokenflash.cn/v1/images/generations');
  
  final payload = {
    'model': 'doubao-seedance-4-5',
    'prompt': '可爱的熊猫在竹林中玩耍',
    'size': '1:1',
    'resolution': '2K',
    'n': 1,
    'image_urls': [
      'https://cdn.apimart.ai/doc/1761215838466614297_9852.png'
    ]
  };
  
  final response = await http.post(
    url,
    headers: {
      'Authorization': 'Bearer <token>',
      'Content-Type': 'application/json',
    },
    body: jsonEncode(payload),
  );
  
  print(response.body);
}

library(httr)
library(jsonlite)

url <- "https://tokenflash.cn/v1/images/generations"

payload <- list(
  model = "doubao-seedance-4-5",
  prompt = "可爱的熊猫在竹林中玩耍",
  size = "1:1",
  resolution = "2K",
  n = 1,
  image_urls = list(
    "https://cdn.apimart.ai/doc/1761215838466614297_9852.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"))

{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01K8SGYNNNVBQTXNR4MM964S7K"
    }
  ]
}

{
  "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": 403,
    "message": "访问被禁止，您没有权限访问此资源",
    "type": "permission_error"
  }
}

{
  "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"
  }
}

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

Authorizations

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 管理页面获取您的 API Key

使用时在请求头中添加：

Authorization: Bearer YOUR_API_KEY

Body

string required

图像生成模型名称

支持的模型：doubao-seedance-4-5、Doubao-Seedream-4.5、doubao-seedream-4.5、doubao-seedream-4-5

Example: "doubao-seedance-4-5"

string required

图像生成的文本描述

string

图像生成的宽高比

支持的宽高比：

1:1 - 正方形（默认）
4:3 - 横向 4:3
3:4 - 纵向 3:4
16:9 - 横向宽屏
9:16 - 纵向竖屏
3:2 - 横向 3:2
2:3 - 纵向 2:3
21:9 - 超宽屏
9:21 - 超竖屏
auto - 自动匹配参考图像比例（需要提供 image_urls）

string

图像分辨率

支持的分辨率：

2K - 标准分辨率（默认）
4K - 高清分辨率

注意： Seedream-4.5 不支持 1K 分辨率

分辨率参考尺寸：

分辨率	1:1 尺寸	16:9 尺寸
2K	2048x2048	2560x1440
4K	4096x4096	5404x3040

2K 分辨率

比例	像素
1:1	2048x2048
4:3	2304x1728
3:4	1728x2304
16:9	2560x1440
9:16	1440x2560
3:2	2496x1664
2:3	1664x2496
21:9	3024x1296
9:21	1296x3024

4K 分辨率

比例	像素
1:1	4096x4096
4:3	4694x3520
3:4	3520x4694
16:9	5404x3040
9:16	3040x5404
3:2	4992x3328
2:3	3328x4992
21:9	6198x2656
9:21	2656x6198

integer

生成图像的数量

取值范围：1-15（最少 1 张，最多 15 张）

默认值：1

注意：

实际可生成的图片数量，除受到此参数影响外，还受到输入的参考图数量影响。输入的参考图数量 + 最终生成的图片数量 ≤ 15 张
必须输入纯数字（如 1），不要加引号，否则会报错

会根据生成数量进行预扣费

array

参考图像的 URL 列表，用于图生图或图像编辑

支持两种格式：

1. 完整的图像URL地址

公开可访问的图像URL（http:// 或 https://）
示例：https://example.com/image.jpg

2. Base64 编码格式

必须使用完整的 Data URI 格式
格式：data:image/{格式};base64,{base64数据}
支持的图片格式：jpeg、png
示例：data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEAYABg...
⚠️ 注意：必须包含 data:image/jpeg;base64, 前缀部分

限制：

最多 10 张图片
图片格式：jpeg、png
宽高比（宽/高）范围：[1/3, 3]
宽高长度（px）> 14
单张图片大小：不超过 10MB
总像素：不超过 6000×6000 px

string

提示词优化模式

standard：标准模式，生成内容的质量更高，耗时较长
fast：快速模式，生成内容的耗时更短，质量一般

默认值：standard

string

组图生成模式（豆包特有功能）

用于控制是否生成多张图片：

disabled：禁用组图模式，即使有多张参考图也只生成 1 张图片（默认）
auto：启用组图模式，可以生成多张图片

使用说明：

✅ 必须提供 image_urls - 至少需要 1 张参考图
✅ 设置 n: 3 或使用 sequential_image_generation: "auto" + max_images: 3
✅ 这样会基于参考图生成 3 张不同的图片
⚠️ 当 n > 1 时会自动设置为 auto

限制：

纯文生图（没有 image_urls）无法生成多张，这是豆包 API 的限制

object

组图生成选项

当 sequential_image_generation 设置为 auto 时可用

属性：

max_images (integer): 指定生成图片的数量，取值范围：1-15

示例：

"sequential_image_generation": "auto",
"sequential_image_generation_options": {
  "max_images": 3
}

boolean

是否在生成的图像上添加水印

true：添加水印
false：不添加水印（默认）

Response

code integer

响应状态码

data array

返回数据数组

Seedream-4.5 图像生成

Authorizations

Body

完整像素映射表

Response

属性

On this page