# model には "gemini-3.1-flash-lite-image" を指定できます。別名 "nano-banana-2-lite" にも対応しています
curl --request POST \
--url https://api.apimart.ai/v1/images/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"n": 1
}'
import requests
url = "https://api.apimart.ai/v1/images/generations"
payload = {
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"n": 1
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.json())
const url = "https://api.apimart.ai/v1/images/generations";
const payload = {
model: "gemini-3.1-flash-lite-image",
prompt: "赛博朋克风格的城市夜景,霓虹灯闪烁",
size: "16:9",
resolution: "1K",
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://api.apimart.ai/v1/images/generations"
payload := map[string]interface{}{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
String payload = """
{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
$payload = [
"model" => "gemini-3.1-flash-lite-image",
"prompt" => "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size" => "16:9",
"resolution" => "1K",
"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://api.apimart.ai/v1/images/generations")
payload = {
model: "gemini-3.1-flash-lite-image",
prompt: "赛博朋克风格的城市夜景,霓虹灯闪烁",
size: "16:9",
resolution: "1K",
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://api.apimart.ai/v1/images/generations")!
let payload: [String: Any] = [
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
var payload = @"{
""model"": ""gemini-3.1-flash-lite-image"",
""prompt"": ""赛博朋克风格的城市夜景,霓虹灯闪烁"",
""size"": ""16:9"",
""resolution"": ""1K"",
""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://api.apimart.ai/v1/images/generations";
const char *payload = "{"
"\"model\":\"gemini-3.1-flash-lite-image\","
"\"prompt\":\"赛博朋克风格的城市夜景,霓虹灯闪烁\","
"\"size\":\"16:9\","
"\"resolution\":\"1K\","
"\"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://api.apimart.ai/v1/images/generations"];
NSDictionary *payload = @{
@"model": @"gemini-3.1-flash-lite-image",
@"prompt": @"赛博朋克风格的城市夜景,霓虹灯闪烁",
@"size": @"16:9",
@"resolution": @"1K",
@"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://api.apimart.ai/v1/images/generations"
let payload = {|{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations');
final payload = {
'model': 'gemini-3.1-flash-lite-image',
'prompt': '赛博朋克风格的城市夜景,霓虹灯闪烁',
'size': '16:9',
'resolution': '1K',
'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://api.apimart.ai/v1/images/generations"
payload <- list(
model = "gemini-3.1-flash-lite-image",
prompt = "赛博朋克风格的城市夜景,霓虹灯闪烁",
size = "16:9",
resolution = "1K",
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"))
{
"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"
}
}
Nano banana2
Nano Banana Lite 画像生成
- Gemini 3.1 シリーズで最速・最安の画像モデル、大規模かつ低コストな画像生成に最適
- 1K 解像度のみサポート(2K/4K/0.5K を渡すと自動的に 1K にダウングレードされ、エラーにはなりません)
- テキストから画像、画像から画像をサポート、最大14枚の参照画像
- input / output token に基づいて課金;公式 Gemini チャネルに直結し、非同期タスクで画像を生成
POST
/
v1
/
images
/
generations
# model には "gemini-3.1-flash-lite-image" を指定できます。別名 "nano-banana-2-lite" にも対応しています
curl --request POST \
--url https://api.apimart.ai/v1/images/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"n": 1
}'
import requests
url = "https://api.apimart.ai/v1/images/generations"
payload = {
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"n": 1
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.json())
const url = "https://api.apimart.ai/v1/images/generations";
const payload = {
model: "gemini-3.1-flash-lite-image",
prompt: "赛博朋克风格的城市夜景,霓虹灯闪烁",
size: "16:9",
resolution: "1K",
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://api.apimart.ai/v1/images/generations"
payload := map[string]interface{}{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
String payload = """
{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
$payload = [
"model" => "gemini-3.1-flash-lite-image",
"prompt" => "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size" => "16:9",
"resolution" => "1K",
"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://api.apimart.ai/v1/images/generations")
payload = {
model: "gemini-3.1-flash-lite-image",
prompt: "赛博朋克风格的城市夜景,霓虹灯闪烁",
size: "16:9",
resolution: "1K",
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://api.apimart.ai/v1/images/generations")!
let payload: [String: Any] = [
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
var payload = @"{
""model"": ""gemini-3.1-flash-lite-image"",
""prompt"": ""赛博朋克风格的城市夜景,霓虹灯闪烁"",
""size"": ""16:9"",
""resolution"": ""1K"",
""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://api.apimart.ai/v1/images/generations";
const char *payload = "{"
"\"model\":\"gemini-3.1-flash-lite-image\","
"\"prompt\":\"赛博朋克风格的城市夜景,霓虹灯闪烁\","
"\"size\":\"16:9\","
"\"resolution\":\"1K\","
"\"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://api.apimart.ai/v1/images/generations"];
NSDictionary *payload = @{
@"model": @"gemini-3.1-flash-lite-image",
@"prompt": @"赛博朋克风格的城市夜景,霓虹灯闪烁",
@"size": @"16:9",
@"resolution": @"1K",
@"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://api.apimart.ai/v1/images/generations"
let payload = {|{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations');
final payload = {
'model': 'gemini-3.1-flash-lite-image',
'prompt': '赛博朋克风格的城市夜景,霓虹灯闪烁',
'size': '16:9',
'resolution': '1K',
'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://api.apimart.ai/v1/images/generations"
payload <- list(
model = "gemini-3.1-flash-lite-image",
prompt = "赛博朋克风格的城市夜景,霓虹灯闪烁",
size = "16:9",
resolution = "1K",
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"))
{
"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"
}
}
モデル名の互換性に関する注意:
gemini-3.1-flash-lite-image は別名 nano-banana-2-lite に対応し、gemini-3.1-flash-lite-image-ext は別名 nano-banana-2-lite-ext に対応します。各名称とその別名は等価であり、互換的に使用できます。# model には "gemini-3.1-flash-lite-image" を指定できます。別名 "nano-banana-2-lite" にも対応しています
curl --request POST \
--url https://api.apimart.ai/v1/images/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"n": 1
}'
import requests
url = "https://api.apimart.ai/v1/images/generations"
payload = {
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"n": 1
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.json())
const url = "https://api.apimart.ai/v1/images/generations";
const payload = {
model: "gemini-3.1-flash-lite-image",
prompt: "赛博朋克风格的城市夜景,霓虹灯闪烁",
size: "16:9",
resolution: "1K",
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://api.apimart.ai/v1/images/generations"
payload := map[string]interface{}{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
String payload = """
{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
$payload = [
"model" => "gemini-3.1-flash-lite-image",
"prompt" => "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size" => "16:9",
"resolution" => "1K",
"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://api.apimart.ai/v1/images/generations")
payload = {
model: "gemini-3.1-flash-lite-image",
prompt: "赛博朋克风格的城市夜景,霓虹灯闪烁",
size: "16:9",
resolution: "1K",
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://api.apimart.ai/v1/images/generations")!
let payload: [String: Any] = [
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations";
var payload = @"{
""model"": ""gemini-3.1-flash-lite-image"",
""prompt"": ""赛博朋克风格的城市夜景,霓虹灯闪烁"",
""size"": ""16:9"",
""resolution"": ""1K"",
""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://api.apimart.ai/v1/images/generations";
const char *payload = "{"
"\"model\":\"gemini-3.1-flash-lite-image\","
"\"prompt\":\"赛博朋克风格的城市夜景,霓虹灯闪烁\","
"\"size\":\"16:9\","
"\"resolution\":\"1K\","
"\"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://api.apimart.ai/v1/images/generations"];
NSDictionary *payload = @{
@"model": @"gemini-3.1-flash-lite-image",
@"prompt": @"赛博朋克风格的城市夜景,霓虹灯闪烁",
@"size": @"16:9",
@"resolution": @"1K",
@"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://api.apimart.ai/v1/images/generations"
let payload = {|{
"model": "gemini-3.1-flash-lite-image",
"prompt": "赛博朋克风格的城市夜景,霓虹灯闪烁",
"size": "16:9",
"resolution": "1K",
"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://api.apimart.ai/v1/images/generations');
final payload = {
'model': 'gemini-3.1-flash-lite-image',
'prompt': '赛博朋克风格的城市夜景,霓虹灯闪烁',
'size': '16:9',
'resolution': '1K',
'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://api.apimart.ai/v1/images/generations"
payload <- list(
model = "gemini-3.1-flash-lite-image",
prompt = "赛博朋克风格的城市夜景,霓虹灯闪烁",
size = "16:9",
resolution = "1K",
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"))
{
"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"
}
}
認証
string
必須
すべてのAPIエンドポイントはBearer Token認証が必要ですAPIキーの取得:APIキー管理ページにアクセスしてAPIキーを取得してくださいリクエストヘッダーに追加:
Authorization: Bearer YOUR_API_KEY
Body
string
デフォルト:"gemini-3.1-flash-lite-image"
必須
画像生成モデル名以下のモデル名をサポート:
gemini-3.1-flash-lite-image(Nano Banana Lite、別名nano-banana-2-liteに対応)gemini-3.1-flash-lite-image-ext(別名nano-banana-2-lite-extに対応)
2つはパラメータと制約が同じです(1K のみ、
google_search / official_fallback 非対応、参照画像は最大14枚)。いずれも -official バリアントはなく、official_fallback フォールバックパラメータもサポートしません。課金は各チャネルの管理画面設定に従います。別名 nano-banana-2-lite(gemini-3.1-flash-lite-image に対応)、nano-banana-2-lite-ext(gemini-3.1-flash-lite-image-ext に対応)は、それぞれの元の名称と等価であり、互換的に使用できます。string
必須
画像生成のテキスト説明
string
画像のアスペクト比サポートされる比率:
auto- アスペクト比を自動選択1:1- 正方形、アバター、SNS3:2/2:3- 標準写真4:3/3:4- 従来のディスプレイ比率16:9/9:16- ワイドスクリーン/縦型動画カバー5:4/4:5- Instagram画像21:9- ウルトラワイドバナー
テキストから画像生成では、
size が auto の場合、デフォルトは 1:1 または 16:9 です。画像から画像生成では、上流の返却比率に従います。(比率の指定を推奨します)string
デフォルト:"1K"
出力画像解像度サポートされる値:
1K- 約1024px、標準解像度(Lite はこの段階のみサポート)
Lite は 1K のみサポートします。
2K / 4K / 0.5K を渡すとサイレントに 1K へダウングレードされ、エラーにはならず、実際に高解像度で出力されることもありません。フロントエンド UI で解像度オプションを公開する必要はありません。integer
デフォルト:"1"
生成する画像の数範囲:1 ~ 4、デフォルト
1n>1 の場合、バックエンドは上流へ複数回リクエストを並行して送信し、実際に成功した枚数に基づいて課金します。フロントエンドでは 1 を固定で渡すことを推奨します(1枚ずつ進捗を表示でき、課金もより直感的です)。⚠️ 注意: 数値のみ入力してください(例:1)。引用符を使用するとエラーが発生しますarray
画像から画像生成用の参照画像URLリスト2つの形式をサポート:1. 完全な画像URLアドレス
- 公開アクセス可能な画像URL(http:// または https://)
- 例:
https://example.com/image.jpg
- 完全なData URI形式を使用する必要があります
- 形式:
data:image/{形式};base64,{base64データ} - サポートされる画像形式:jpeg、png、webp
- 例:
data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEAYABg... - ⚠️ 注意:
data:image/jpeg;base64,プレフィックスを含める必要があります
- 最大 14枚 の参照画像(推奨:最大10枚のオブジェクト参照 + 4枚のキャラクター参照)
- 1枚あたり10MB以下
- 対応形式:jpeg、png、webp
string
タスクコールバックアドレス(base)タスクの成功 / 失敗時に、本プラットフォームは
webhook + /callback へコールバックします(上流へは転送しません)。このパラメータを渡すとポーリングを大幅に削減できますが、フォールバックとしてポーリングを残すことを推奨します。Lite 利用時のポイント
google_search/google_image_searchはサポートされません:Lite は Developer API のinteractionsエンドポイントを利用しますが、上流が Search ツールを開放していない(“Search as tool is not enabled for this model” を返します)ため、プラットフォームのアダプターもこのパラメータを下流に送りません。渡してもエラーにはならず通常どおり画像は生成されますが、検索強化の効果は一切ありません。検索強化が必要な場合はgemini-3.1-flash-image-previewを使用してください。mask_urlによる部分的な再描画はサポートしません(Gemini シリーズは aspect ratio + 参照画像で処理し、マスクは使用しません)。- token に基づいて課金(flash/pro の枚数固定価格とは異なります):入力は約 0.25/百万token、画像出力は約30/百万 token、1K の1枚 ≈ 1120 output token ≈ $0.0336/枚。実際の価格は管理画面の倍率設定に従います。
- 生成されるすべての画像には Google SynthID の不可視ウォーターマークが含まれます(上流の動作であり、無効化できません)。
レスポンス
integer
レスポンスステータスコード
⌘I