Nano Banana Pro Text to Image

POST /v3/gemini-3-pro-image-text-to-image

Nano Banana Pro Text to Image

cURL

curl --request POST \
  --url https://api.myrouter.ai/v3/gemini-3-pro-image-text-to-image \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "size": "<string>",
  "google": {
    "web_search": true
  },
  "prompt": "<string>",
  "aspect_ratio": "<string>",
  "output_format": "<string>"
}
'

import requests

url = "https://api.myrouter.ai/v3/gemini-3-pro-image-text-to-image"

payload = {
    "size": "<string>",
    "google": { "web_search": True },
    "prompt": "<string>",
    "aspect_ratio": "<string>",
    "output_format": "<string>"
}
headers = {
    "Content-Type": "<content-type>",
    "Authorization": "<authorization>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': '<content-type>', Authorization: '<authorization>'},
  body: JSON.stringify({
    size: '<string>',
    google: {web_search: true},
    prompt: '<string>',
    aspect_ratio: '<string>',
    output_format: '<string>'
  })
};

fetch('https://api.myrouter.ai/v3/gemini-3-pro-image-text-to-image', 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.myrouter.ai/v3/gemini-3-pro-image-text-to-image",
  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([
    'size' => '<string>',
    'google' => [
        'web_search' => true
    ],
    'prompt' => '<string>',
    'aspect_ratio' => '<string>',
    'output_format' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>",
    "Content-Type: <content-type>"
  ],
]);

$response = curl_exec($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.myrouter.ai/v3/gemini-3-pro-image-text-to-image"

	payload := strings.NewReader("{\n  \"size\": \"<string>\",\n  \"google\": {\n    \"web_search\": true\n  },\n  \"prompt\": \"<string>\",\n  \"aspect_ratio\": \"<string>\",\n  \"output_format\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("Authorization", "<authorization>")

	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.myrouter.ai/v3/gemini-3-pro-image-text-to-image")
  .header("Content-Type", "<content-type>")
  .header("Authorization", "<authorization>")
  .body("{\n  \"size\": \"<string>\",\n  \"google\": {\n    \"web_search\": true\n  },\n  \"prompt\": \"<string>\",\n  \"aspect_ratio\": \"<string>\",\n  \"output_format\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.myrouter.ai/v3/gemini-3-pro-image-text-to-image")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = '<content-type>'
request["Authorization"] = '<authorization>'
request.body = "{\n  \"size\": \"<string>\",\n  \"google\": {\n    \"web_search\": true\n  },\n  \"prompt\": \"<string>\",\n  \"aspect_ratio\": \"<string>\",\n  \"output_format\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

200

{
  "image_urls": [
    {}
  ],
  "grounding_metadata": {}
}

Gemini 3 Pro Image (Nano Banana Pro) is designed to tackle the most challenging image generation tasks by integrating state-of-the-art reasoning capabilities. It is the best model for complex and multi-turn image generation and editing, with higher accuracy and superior image quality. Supports configurable image size, aspect ratio, and output format.

Request Headers

Content-Type · string · required

Enum: application/json

Authorization · string · required

Bearer authentication format: Bearer {{API Key}}.

Request Body

size · string · default: "1K"

Output image pixel dimensions (width*height). 1K (1024px), 2K (2048px), 4K (4096px). Defaults to 1K

Possible values: 1K, 2K, 4K

google · object

Google search options

Hide properties

web_search · boolean · default: false

Enable Google web search to generate more accurate images based on real-world information.

prompt · string · required

Text prompt describing the image to generate

aspect_ratio · string · default: "1:1"

Aspect ratio of the generated image

Possible values: 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9

output_format · string · default: "image/png"

MIME type of the output image. Supports PNG, JPEG, and WebP formats

Possible values: image/png, image/jpeg, image/webp

Response

image_urls · array · required

List of generated image URLs

grounding_metadata · object

Model grounding metadata. Returned when Google server-side tools (e.g., search) are invoked. Note: tool invocation depends on Google. Enabling the parameter makes the tool available but does not guarantee 100% tool invocation.