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Grok Imagine 图像生成

  • 异步处理模式,返回任务ID用于后续查询
  • 支持文生图与基于参考图的图像编辑
  • 同页提供 grok-imagine-image 与 grok-imagine-image-quality 官方模型说明
  • 生成的图像链接,有效期为24小时,请尽快保存

模型名兼容提示:本接口同时兼容别名 grok-imagine-1.5-ext,它等价于 grok-imagine-1.5-apimart,两者可互换使用、效果一致。

当前 API 示例与 Body 区域对应 Grok Imagine 1.5;grok-imagine-image 和 grok-imagine-image-quality 的参数差异请查看下方官方模型章节。三个模型均为异步任务,提交后需要通过任务状态接口查询结果。

请求示例
# model 可填 "grok-imagine-1.5-apimart",也兼容别名 "grok-imagine-1.5-ext"
curl --request POST \
  --url https://26j.cn/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "grok-imagine-1.5-apimart",
    "prompt": "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
    "size": "1:1",
    "n": 1
  }'
import requests

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

payload = {
    "model": "grok-imagine-1.5-apimart",
    "prompt": "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
    "size": "1:1",
    "n": 1
}

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/images/generations";

const payload = {
  model: "grok-imagine-1.5-apimart",
  prompt: "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
  size: "1:1",
  n: 1
};

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/images/generations"

    payload := map[string]interface{}{
        "model":  "grok-imagine-1.5-apimart",
        "prompt": "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
        "size":   "1:1",
        "n":      1,
    }

    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/images/generations";

        String payload = """
        {
          "model": "grok-imagine-1.5-apimart",
          "prompt": "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
          "size": "1:1",
          "n": 1
        }
        """;

        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/images/generations";

$payload = [
    "model" => "grok-imagine-1.5-apimart",
    "prompt" => "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
    "size" => "1:1",
    "n" => 1
];

$ch = curl_init($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/images/generations")

payload = {
  model: "grok-imagine-1.5-apimart",
  prompt: "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
  size: "1:1",
  n: 1
}

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/images/generations")!

let payload: [String: Any] = [
    "model": "grok-imagine-1.5-apimart",
    "prompt": "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
    "size": "1:1",
    "n": 1
]

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/images/generations";

        var payload = @"{
            ""model"": ""grok-imagine-1.5-apimart"",
            ""prompt"": ""一只橙色的猫坐在阳光明媚的窗台上,油画风格"",
            ""size"": ""1:1"",
            ""n"": 1
        }";

        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://26j.cn/v1/images/generations";
        const char *payload = "{"
            "\"model\":\"grok-imagine-1.5-apimart\","
            "\"prompt\":\"一只橙色的猫坐在阳光明媚的窗台上,油画风格\","
            "\"size\":\"1:1\","
            "\"n\":1"
        "}";

        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://26j.cn/v1/images/generations"];

        NSDictionary *payload = @{
            @"model": @"grok-imagine-1.5-apimart",
            @"prompt": @"一只橙色的猫坐在阳光明媚的窗台上,油画风格",
            @"size": @"1:1",
            @"n": @1
        };

        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://26j.cn/v1/images/generations"

let payload = {|{
  "model": "grok-imagine-1.5-apimart",
  "prompt": "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
  "size": "1:1",
  "n": 1
}|}

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://26j.cn/v1/images/generations');

  final payload = {
    'model': 'grok-imagine-1.5-apimart',
    'prompt': '一只橙色的猫坐在阳光明媚的窗台上,油画风格',
    'size': '1:1',
    'n': 1
  };

  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://26j.cn/v1/images/generations"

payload <- list(
  model = "grok-imagine-1.5-apimart",
  prompt = "一只橙色的猫坐在阳光明媚的窗台上,油画风格",
  size = "1:1",
  n = 1
)

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

cat(content(response, "text"))
响应示例
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01JNXXXXXXXXXXXXXXXXXX"
    }
  ]
}
{
  "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

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

Body

modelstring必填默认 grok-imagine-1.5-apimart

图像生成模型名称

支持的模型:

  • grok-imagine-1.5-apimart - Grok 图像生成与编辑(兼容别名 grok-imagine-1.5-ext)

示例:"grok-imagine-1.5-ext"

nsfw_checkboolean默认 false

是否在提交图片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必填

图像生成或编辑的文本描述,支持中英文

image_urlsstring[]

参考图 URL 列表。不传为文生图,传入则为图像编辑。

  • 该模型支持 1–5 张参考图
  • 仅支持公网可访问的绝对 http:// 或 https:// URL
  • 本地图片请先调用 POST /v1/uploads/images 上传,再使用返回的 url
sizestring默认 1:1

输出图像尺寸

支持的格式:

  • 1:1 - 正方形(默认)
  • 16:9 - 横版宽屏
  • 9:16 - 竖版长屏
  • 3:2 - 横版
  • 2:3 - 竖版
ninteger

生成图像的数量

取值范围:1-10(最少 1 张,最多 10 张)

⚠️ 注意: 必须输入纯数字(如 1),不要加引号,否则会报错

Response

codeinteger

响应状态码

dataarray

返回数据数组

使用场景

场景 1:文生图

{
  "model": "grok-imagine-1.5-apimart",
  "prompt": "一只橙色的猫坐在阳光明媚的窗台上,油画风格"
}

场景 2:文生图(指定尺寸与数量)

{
  "model": "grok-imagine-1.5-apimart",
  "prompt": "星空背景下,前景站着一个人物",
  "size": "16:9",
  "n": 2
}

场景 3:图像编辑(改背景)

{
  "model": "grok-imagine-1.5-apimart",
  "prompt": "把背景改成星空,保留主体人物",
  "image_urls": ["https://example.com/original.png"]
}

场景 4:图像编辑(风格化)

{
  "model": "grok-imagine-1.5-apimart",
  "prompt": "将图片转换为赛博朋克风格",
  "image_urls": ["https://example.com/original.png"],
  "n": 2
}

官方模型

grok-imagine-image 和 grok-imagine-image-quality 提交后返回任务 ID。请通过获取任务状态接口轮询,直到任务完成或失败。

模型 分辨率 质量选项 输入图 输出张数
grok-imagine-image 1k、2k 无质量选项 0–5 张 1–10 张
grok-imagine-image-quality 1k、2k 无质量选项 0–3 张 1–10 张

这两个模型不要发送 quality。不传 image_urls 时为文生图;传 1 张时为单图编辑;传多张时为多图参考。grok-imagine-image 最多支持 5 张参考图,grok-imagine-image-quality 最多支持 3 张。

请求头

Header 要求 说明
Authorization 必须 Bearer <26j.cn API Key>
Content-Type 必须 固定 application/json
Accept 推荐 固定 application/json
Idempotency-Key 强烈推荐 每次逻辑生成使用唯一 UUID;网络重试复用原值
X-26j.cn-Response-Version 强烈推荐 固定为 2026-07-27,确保响应结构稳定

请求参数

字段 类型 必填 说明
model string 是 grok-imagine-image 或 grok-imagine-image-quality
nsfw_check boolean 否 默认值:false。
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。
prompt string 是 去除首尾空格后不能为空,最多 8000 个字符
n integer 否 默认值:1;允许值:1–10
aspect_ratio string 否 默认值:auto;使用下方允许值
resolution string 否 默认值:1k;允许值:1k 或 2k
image_urls string[] 否 参考图数组:grok-imagine-image 允许 1–5 张,grok-imagine-image-quality 允许 1–3 张;无参考图时省略

aspect_ratio 允许值:1:1、3:4、4:3、9:16、16:9、2:3、3:2、9:19.5、19.5:9、9:20、20:9、1:2、2:1、auto。

新接入不要发送像素尺寸字符串。画面比例由 aspect_ratio 控制,清晰度档位由 resolution 控制。

文生图示例

curl --request POST \
  --url https://26j.cn/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Accept: application/json' \
  --header 'Idempotency-Key: 1c0a9cf6-6724-44d2-b64e-4db7373bc391' \
  --header 'X-26j.cn-Response-Version: 2026-07-27' \
  --data '{
    "model": "grok-imagine-image",
    "prompt": "白色陶瓷杯的极简产品摄影,柔和棚拍光线",
    "n": 1,
    "aspect_ratio": "1:1",
    "resolution": "2k"
  }'

多图参考示例

{
  "model": "grok-imagine-image-quality",
  "prompt": "使用 <IMAGE_0> 作为产品,使用 <IMAGE_1> 作为海报风格",
  "n": 1,
  "aspect_ratio": "4:3",
  "resolution": "2k",
  "image_urls": [
    "https://cdn.example.com/product.png",
    "https://cdn.example.com/style.webp"
  ]
}

多图参考时,可按数组顺序在提示词中使用 <IMAGE_0>、<IMAGE_1> 等占位符引用图片;grok-imagine-image 最多可引用到 <IMAGE_4>,grok-imagine-image-quality 最多可引用到 <IMAGE_2>。

参考图要求

image_urls 仅接受公网可访问的绝对 http:// 或 https:// URL。本地图片请先调用 POST /v1/uploads/images 上传,再使用返回的 url。

  • 数组顺序会保留;
  • 重复图片按多张输入处理并按张计费;
  • 没有参考图时省略字段,不要发送空数组。

任务提交响应

202
{
  "code": 202,
  "request_id": "2026081415330012345678abcdef",
  "data": {
    "id": "task_01KZQE5CM0Y3KZ6M1N1BK619MX",
    "object": "generation.task",
    "type": "image",
    "status": "pending",
    "progress": 0,
    "poll_url": "/v1/tasks/task_01KZQE5CM0Y3KZ6M1N1BK619MX"
  }
}

任务 ID 位于 data.id。使用 data.poll_url 或 GET /v1/tasks/{task_id} 查询任务状态,直到状态变为 completed 或 failed。

预估价格

GET https://26j.cn/api/pricing/image/quote

报价参数应与生成请求保持一致:model、n、aspect_ratio、resolution,并将 image_urls.length 作为 input_images。页面只展示服务端返回的 data.final_usd,不要硬编码价格或自行计算最终金额。

幂等与重试

每次用户确认的一次逻辑生成创建一个 Idempotency-Key。同一次请求的网络重试必须复用原 Key、原请求 Body 和原 X-26j.cn-Response-Version;用户修改模型、提示词、图片或其它参数后再创建新 Key。

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