Image Editing: Edit an existing image with text instructions
curl --request POST \
--url https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"contents": [
{
"parts": [
{
"text": "Combine the people from these two images into one office scene, making funny faces"
},
{
"inlineData": {
"mimeType": "image/png",
"data": "<BASE64_DATA_IMG_1>"
}
},
{
"inlineData": {
"mimeType": "image/png",
"data": "<BASE64_DATA_IMG_2>"
}
}
]
}
],
"generationConfig": {
"responseModalities": [
"IMAGE"
],
"imageConfig": {
"aspectRatio": "16:9",
"imageSize": "2K"
}
}
}
'import requests
url = "https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent"
payload = {
"contents": [{ "parts": [{ "text": "Combine the people from these two images into one office scene, making funny faces" }, { "inlineData": {
"mimeType": "image/png",
"data": "<BASE64_DATA_IMG_1>"
} }, { "inlineData": {
"mimeType": "image/png",
"data": "<BASE64_DATA_IMG_2>"
} }] }],
"generationConfig": {
"responseModalities": ["IMAGE"],
"imageConfig": {
"aspectRatio": "16:9",
"imageSize": "2K"
}
}
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
contents: [
{
parts: [
{
text: 'Combine the people from these two images into one office scene, making funny faces'
},
{inlineData: {mimeType: 'image/png', data: '<BASE64_DATA_IMG_1>'}},
{inlineData: {mimeType: 'image/png', data: '<BASE64_DATA_IMG_2>'}}
]
}
],
generationConfig: {
responseModalities: ['IMAGE'],
imageConfig: {aspectRatio: '16:9', imageSize: '2K'}
}
})
};
fetch('https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'contents' => [
[
'parts' => [
[
'text' => 'Combine the people from these two images into one office scene, making funny faces'
],
[
'inlineData' => [
'mimeType' => 'image/png',
'data' => '<BASE64_DATA_IMG_1>'
]
],
[
'inlineData' => [
'mimeType' => 'image/png',
'data' => '<BASE64_DATA_IMG_2>'
]
]
]
]
],
'generationConfig' => [
'responseModalities' => [
'IMAGE'
],
'imageConfig' => [
'aspectRatio' => '16:9',
'imageSize' => '2K'
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent"
payload := strings.NewReader("{\n \"contents\": [\n {\n \"parts\": [\n {\n \"text\": \"Combine the people from these two images into one office scene, making funny faces\"\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_1>\"\n }\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_2>\"\n }\n }\n ]\n }\n ],\n \"generationConfig\": {\n \"responseModalities\": [\n \"IMAGE\"\n ],\n \"imageConfig\": {\n \"aspectRatio\": \"16:9\",\n \"imageSize\": \"2K\"\n }\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"contents\": [\n {\n \"parts\": [\n {\n \"text\": \"Combine the people from these two images into one office scene, making funny faces\"\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_1>\"\n }\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_2>\"\n }\n }\n ]\n }\n ],\n \"generationConfig\": {\n \"responseModalities\": [\n \"IMAGE\"\n ],\n \"imageConfig\": {\n \"aspectRatio\": \"16:9\",\n \"imageSize\": \"2K\"\n }\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent")
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 = "{\n \"contents\": [\n {\n \"parts\": [\n {\n \"text\": \"Combine the people from these two images into one office scene, making funny faces\"\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_1>\"\n }\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_2>\"\n }\n }\n ]\n }\n ],\n \"generationConfig\": {\n \"responseModalities\": [\n \"IMAGE\"\n ],\n \"imageConfig\": {\n \"aspectRatio\": \"16:9\",\n \"imageSize\": \"2K\"\n }\n }\n}"
response = http.request(request)
puts response.read_body{
"candidates": [
{
"content": {
"parts": [
{
"inlineData": {
"mimeType": "image/png",
"data": "<string>"
}
}
]
},
"finishReason": "STOP"
}
],
"usageMetadata": {
"promptTokenCount": 10,
"candidatesTokenCount": 258
}
}Nano Banana Pro画像生成
Image Editing API リファレンス
Nano Banana Pro の画像編集 API リファレンスとインタラクティブなプレイグラウンド — 画像 + 指示を与えて編集結果を生成します
POST
/
v1beta
/
models
/
gemini-3-pro-image-preview:generateContent
Image Editing: Edit an existing image with text instructions
curl --request POST \
--url https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"contents": [
{
"parts": [
{
"text": "Combine the people from these two images into one office scene, making funny faces"
},
{
"inlineData": {
"mimeType": "image/png",
"data": "<BASE64_DATA_IMG_1>"
}
},
{
"inlineData": {
"mimeType": "image/png",
"data": "<BASE64_DATA_IMG_2>"
}
}
]
}
],
"generationConfig": {
"responseModalities": [
"IMAGE"
],
"imageConfig": {
"aspectRatio": "16:9",
"imageSize": "2K"
}
}
}
'import requests
url = "https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent"
payload = {
"contents": [{ "parts": [{ "text": "Combine the people from these two images into one office scene, making funny faces" }, { "inlineData": {
"mimeType": "image/png",
"data": "<BASE64_DATA_IMG_1>"
} }, { "inlineData": {
"mimeType": "image/png",
"data": "<BASE64_DATA_IMG_2>"
} }] }],
"generationConfig": {
"responseModalities": ["IMAGE"],
"imageConfig": {
"aspectRatio": "16:9",
"imageSize": "2K"
}
}
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
contents: [
{
parts: [
{
text: 'Combine the people from these two images into one office scene, making funny faces'
},
{inlineData: {mimeType: 'image/png', data: '<BASE64_DATA_IMG_1>'}},
{inlineData: {mimeType: 'image/png', data: '<BASE64_DATA_IMG_2>'}}
]
}
],
generationConfig: {
responseModalities: ['IMAGE'],
imageConfig: {aspectRatio: '16:9', imageSize: '2K'}
}
})
};
fetch('https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'contents' => [
[
'parts' => [
[
'text' => 'Combine the people from these two images into one office scene, making funny faces'
],
[
'inlineData' => [
'mimeType' => 'image/png',
'data' => '<BASE64_DATA_IMG_1>'
]
],
[
'inlineData' => [
'mimeType' => 'image/png',
'data' => '<BASE64_DATA_IMG_2>'
]
]
]
]
],
'generationConfig' => [
'responseModalities' => [
'IMAGE'
],
'imageConfig' => [
'aspectRatio' => '16:9',
'imageSize' => '2K'
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent"
payload := strings.NewReader("{\n \"contents\": [\n {\n \"parts\": [\n {\n \"text\": \"Combine the people from these two images into one office scene, making funny faces\"\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_1>\"\n }\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_2>\"\n }\n }\n ]\n }\n ],\n \"generationConfig\": {\n \"responseModalities\": [\n \"IMAGE\"\n ],\n \"imageConfig\": {\n \"aspectRatio\": \"16:9\",\n \"imageSize\": \"2K\"\n }\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"contents\": [\n {\n \"parts\": [\n {\n \"text\": \"Combine the people from these two images into one office scene, making funny faces\"\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_1>\"\n }\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_2>\"\n }\n }\n ]\n }\n ],\n \"generationConfig\": {\n \"responseModalities\": [\n \"IMAGE\"\n ],\n \"imageConfig\": {\n \"aspectRatio\": \"16:9\",\n \"imageSize\": \"2K\"\n }\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent")
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 = "{\n \"contents\": [\n {\n \"parts\": [\n {\n \"text\": \"Combine the people from these two images into one office scene, making funny faces\"\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_1>\"\n }\n },\n {\n \"inlineData\": {\n \"mimeType\": \"image/png\",\n \"data\": \"<BASE64_DATA_IMG_2>\"\n }\n }\n ]\n }\n ],\n \"generationConfig\": {\n \"responseModalities\": [\n \"IMAGE\"\n ],\n \"imageConfig\": {\n \"aspectRatio\": \"16:9\",\n \"imageSize\": \"2K\"\n }\n }\n}"
response = http.request(request)
puts response.read_body{
"candidates": [
{
"content": {
"parts": [
{
"inlineData": {
"mimeType": "image/png",
"data": "<string>"
}
}
]
},
"finishReason": "STOP"
}
],
"usageMetadata": {
"promptTokenCount": 10,
"candidatesTokenCount": 258
}
}右側のインタラクティブな Playground では、パラメータをドロップダウンで選択できます。API Key を Authorization フィールド(形式:
Bearer sk-xxx)に入力すると、ワンクリックでテストリクエストを送信できます。範囲: このページは 画像編集 用です。編集指示に加えて、入力画像(base64エンコードされたもの)を提供する必要があります。テキストのみから新しい画像を生成するには、Text-to-Image エンドポイント を使用してください。
🖥️ ブラウザ Playground の制限(重要)このエンドポイントは、レスポンスで base64エンコードされた画像(
inlineData.data、通常は数MB)を返します。ブラウザのレンダリング制限により、右側の Playground ではレスポンス到着後に 请求时发生错误: unable to complete request が表示される場合があります — リクエスト自体は正常に成功しています。ブラウザが、そのような長い base64 文字列をレンダリングできないだけです。推奨ワークフロー(初心者向け):- 下の Python / Node.js / cURL サンプルをコピーして、ローカルで実行してください。コードが自動で
base64.b64decodes し、画像をファイルに書き出します。 - どうしてもブラウザ内の Playground を使う必要がある場合は、小さな参照画像(< 50KB)を使用し、
imageSizeを最小の階層(例:1K)に設定してください。
⚠️ 誤った例(各 part に
parts 配列の構造(重要 — 複数画像編集ではここを読んでください)各 part は、text か inlineData のどちらか一方のみでなければなりません。両方を含めてはいけません。これは Google の公式な gemini-3-pro-image-preview 契約と一致します。正しい例: 1 つの text part(指示) + N 個の inlineData part(画像 1 枚につき 1 つ):"contents": [{
"parts": [
{"text": "Combine the people from these two images into one office scene"},
{"inlineData": {"mimeType": "image/png", "data": "<BASE64_DATA_IMG_1>"}},
{"inlineData": {"mimeType": "image/png", "data": "<BASE64_DATA_IMG_2>"}}
]
}]
text と inlineData の両方が含まれている — 未定義動作を引き起こします):"contents": [{
"parts": [
{"inlineData": {...}, "text": "is this the prompt 1"},
{"inlineData": {...}, "text": "is this the prompt 2"}
]
}]
inlineData.data フィールドについてこのエンドポイントは JSON 形式(multipart のファイルアップロードではありません)を使用するため、Playground からローカルファイルを直接選択することはできません。まず画像を Base64 文字列 に変換し、それを data 入力に貼り付ける必要があります。1 行コマンド: 変換 + クリップボードにコピー:# macOS
base64 -i your-image.jpg | tr -d '\n' | pbcopy
# Linux
base64 -w0 your-image.jpg | xclip -selection clipboard
# Windows PowerShell
[Convert]::ToBase64String([IO.File]::ReadAllBytes("your-image.jpg")) | Set-Clipboard
Cmd+V / Ctrl+V して Playground の data フィールドに貼り付けてください。また、mimeType を対応する image/jpeg または image/png に設定することも忘れないでください。推奨: ブラウザの遅延を避けるため、テストには小さな画像(200KB 未満)を使用してください。画像編集のテストを頻繁に行う場合は、代わりに下のコード例を使ってローカルで実行してください。コード例
Python
import requests
import base64
API_KEY = "sk-your-api-key"
# Read the image to edit
with open("input.jpg", "rb") as f:
image_b64 = base64.b64encode(f.read()).decode()
response = requests.post(
"https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent",
headers={"Authorization": f"Bearer {API_KEY}", "Content-Type": "application/json"},
json={
"contents": [{
"parts": [
{"text": "Please blur the background to highlight the person in the foreground"},
{"inlineData": {"mimeType": "image/jpeg", "data": image_b64}}
]
}],
"generationConfig": {
"responseModalities": ["IMAGE"],
"imageConfig": {"aspectRatio": "16:9", "imageSize": "2K"}
}
},
timeout=300
).json()
img_data = response["candidates"][0]["content"]["parts"][0]["inlineData"]["data"]
with open("edited.png", 'wb') as f:
f.write(base64.b64decode(img_data))
print("Edited image saved to edited.png")
Node.js
import fs from "fs";
const API_KEY = "sk-your-api-key";
const imageB64 = fs.readFileSync("input.jpg").toString("base64");
const response = await fetch(
"https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent",
{
method: "POST",
headers: {
"Authorization": `Bearer ${API_KEY}`,
"Content-Type": "application/json"
},
body: JSON.stringify({
contents: [{
parts: [
{ text: "Please blur the background to highlight the person in the foreground" },
{ inlineData: { mimeType: "image/jpeg", data: imageB64 } }
]
}],
generationConfig: {
responseModalities: ["IMAGE"],
imageConfig: { aspectRatio: "16:9", imageSize: "2K" }
}
})
}
);
const data = await response.json();
const imgBase64 = data.candidates[0].content.parts[0].inlineData.data;
fs.writeFileSync("edited.png", Buffer.from(imgBase64, "base64"));
cURL
# Note: convert image to base64 first
# IMAGE_B64=$(base64 -i input.jpg | tr -d '\n')
curl -X POST "https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent" \
-H "Authorization: Bearer sk-your-api-key" \
-H "Content-Type: application/json" \
-d '{
"contents": [{
"parts": [
{"text": "Please blur the background to highlight the person in the foreground"},
{"inlineData": {"mimeType": "image/jpeg", "data": "'"$IMAGE_B64"'"}}
]
}],
"generationConfig": {
"responseModalities": ["IMAGE"],
"imageConfig": {"aspectRatio": "16:9", "imageSize": "2K"}
}
}'
複数画像編集
複数の入力画像を結合または比較する場合は、単一のtext パート(指示)を使用し、その後に複数の inlineData パート(画像ごとに 1 つ)を続けます。
Python(複数画像)
import requests
import base64
API_KEY = "sk-your-api-key"
def to_b64(path):
with open(path, "rb") as f:
return base64.b64encode(f.read()).decode()
# Prepare multiple images (2 here as an example)
images = ["person1.png", "person2.png"]
parts = [{"text": "Combine the people from these images into one office scene, making funny faces"}]
for path in images:
parts.append({"inlineData": {"mimeType": "image/png", "data": to_b64(path)}})
response = requests.post(
"https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent",
headers={"Authorization": f"Bearer {API_KEY}", "Content-Type": "application/json"},
json={
"contents": [{"parts": parts}],
"generationConfig": {
"responseModalities": ["TEXT", "IMAGE"],
"imageConfig": {"aspectRatio": "5:4", "imageSize": "2K"}
}
},
timeout=300
).json()
img_data = response["candidates"][0]["content"]["parts"][0]["inlineData"]["data"]
with open("merged.png", "wb") as f:
f.write(base64.b64decode(img_data))
cURL(複数画像、Google の公式形式に準拠)
curl -X POST "https://api.apiyi.com/v1beta/models/gemini-3-pro-image-preview:generateContent" \
-H "Authorization: Bearer sk-your-api-key" \
-H "Content-Type: application/json" \
-d '{
"contents": [{
"parts": [
{"text": "An office group photo of these people, they are making funny faces."},
{"inlineData": {"mimeType": "image/png", "data": "<BASE64_DATA_IMG_1>"}},
{"inlineData": {"mimeType": "image/png", "data": "<BASE64_DATA_IMG_2>"}},
{"inlineData": {"mimeType": "image/png", "data": "<BASE64_DATA_IMG_3>"}}
]
}],
"generationConfig": {
"responseModalities": ["TEXT", "IMAGE"],
"imageConfig": {"aspectRatio": "5:4", "imageSize": "2K"}
}
}'
パラメータ早見表
| パラメータ | 型 | 必須 | 説明 |
|---|---|---|---|
contents[].parts | array | はい | 1つのテキスト部分 + N個の inlineData 部分 で構成されます。各部分には text または inlineData のどちらか一方のみが含まれます — 両方は含まれません |
contents[].parts[].text | string | はい | 編集指示(最初の部分のみに入れてください) |
contents[].parts[].inlineData.mimeType | string | はい | image/jpeg または image/png |
contents[].parts[].inlineData.data | string | はい | Base64 エンコードされた画像(複数画像編集では、画像ごとに inlineData 部分を 1 つずつ繰り返します) |
generationConfig.responseModalities | array | はい | 通常は ["IMAGE"] |
generationConfig.imageConfig.aspectRatio | string | いいえ | 10 個の比率、デフォルトは 1:1 |
generationConfig.imageConfig.imageSize | string | いいえ | 1K / 2K / 4K、デフォルトは 1K |
Nano Banana Pro はマルチ画像編集をサポートします。複数の画像を編集指示とともに入力でき、マルチ画像合成やスタイル転送のような高度な機能に対応しています。
承認
API Key from APIYI Console
ボディ
application/json
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