Gemini 2.5 Flash Image Edit (Nano Banana)

This documentation is valid for the following list of our models:

• google/gemini-2.5-flash-image-edit

Model Overview

The model takes multiple images as input, with the prompt defining how they are used or combined.

Setup your API Key

If you don’t have an API key for the AI/ML API yet, feel free to use our Quickstart guide.

API Schema

Aspect ratio/Resolution Table

Aspect ratio	Resolution	Credits
1:1	1024×1024	84 000
2:3	832×1248	84 000
3:2	1248×832	84 000
3:4	864×1184	84 000
4:3	1184×864	84 000
4:5	896×1152	84 000
5:4	1152×896	84 000
9:16	768×1344	84 000
16:9	1344×768	84 000
21:9	1536×672	84 000

post

Body

application/json

modelstring · enumRequiredPossible values:

promptstringRequired

The text prompt describing the content, style, or composition of the image to be generated.

image_urlsstring · uri[]Required

List of URLs or local Base64 encoded images to edit.

num_imagesnumber · min: 1 · max: 4Optional

The number of images to generate.

Default: 1

Responses

200Success

application/json

post

/v1/images/generations

JavaScriptPythoncURLHTTP

async function main() {
  const response = await fetch('https://api.aimlapi.com/v1/images/generations', {
    method: 'POST',
    headers: {
      'Authorization': 'Bearer <YOUR_AIMLAPI_KEY>',
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      "model": "google/gemini-2.5-flash-image-edit",
      "prompt": "Combine the images so the T-Rex is wearing a business suit, sitting in a cozy small café, drinking from the mug. Blur the background slightly to create a bokeh effect.",
      "image_urls": [
        "https://raw.githubusercontent.com/aimlapi/api-docs/main/reference-files/t-rex.png",
        "https://raw.githubusercontent.com/aimlapi/api-docs/main/reference-files/blue-mug.jpg"
      ]
    }),
  });

  const data = await response.json();
  console.log(JSON.stringify(data, null, 2));
}

main();

200Success

{
  "data": [
    {
      "url": "https://cdn.aimlapi.com/generations/hedgehog/1749730923700-29fe35d2-4aef-4bc5-a911-6c39884d16a8.png",
      "b64_json": null
    }
  ],
  "meta": {
    "usage": {
      "tokens_used": 120000
    }
  }
}

Quick Example

Let's generate an image using two input images and a prompt that defines how they should be edited.

Python

import requests
import json

def main():
    response = requests.post(
        "https://api.aimlapi.com/v1/images/generations",
        headers={
            # Insert your AIML API Key instead of <YOUR_AIMLAPI_KEY>:
            "Authorization": "Bearer <YOUR_AIMLAPI_KEY>",
            "Content-Type": "application/json",
        },
        json={
            "model": "google/gemini-2.5-flash-image-edit",
            "image_urls": [
                "https://raw.githubusercontent.com/aimlapi/api-docs/main/reference-files/t-rex.png",
                "https://raw.githubusercontent.com/aimlapi/api-docs/main/reference-files/blue-mug.jpg"
            ],
            "prompt": "Combine the images so the T-Rex is wearing a business suit, sitting in a cozy small café, drinking from the mug. Blur the background slightly to create a bokeh effect.",
        }
    )

    data = response.json()
    print(json.dumps(data, indent=2, ensure_ascii=False))

if __name__ == "__main__":
    main()

JS

Response

{
  "images": [
    {
      "url": "https://cdn.aimlapi.com/eagle/files/panda/9g3PokYLjWoygTVrRgfvG_output.png",
      "content_type": "image/png",
      "file_name": "output.png",
      "file_size": 2273159,
      "width": null,
      "height": null
    }
  ],
  "description": "Here is your T-Rex in a business suit, enjoying a drink in a cozy cafe! "
}

Reference Images	Generated Image
Image #1	"Combine the images so the T-Rex is wearing a business suit, sitting in a cozy small café, drinking from the mug. Blur the background slightly to create a bokeh effect."
Image #2