Gemini 2.5 Flash Image Edit

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	Tokens
1:1	1024×1024	1290
2:3	832×1248	1290
3:2	1248×832	1290
3:4	864×1184	1290
4:3	1184×864	1290
4:5	896×1152	1290
5:4	1152×896	1290
9:16	768×1344	1290
16:9	1344×768	1290
21:9	1536×672	1290

post

Authorizations

access-token

AuthorizationstringRequired

Bearer key

Body

application/json

modelundefined · 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.

aspect_ratiostring · enumOptional

The aspect ratio of the generated image.

Possible values:

num_imagesnumber · min: 1 · max: 4Optional

The number of images to generate.

Default: 1

Responses

201

Successfully generated image

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: "Add a crown to the T-rex's head.",
      image: 'https://raw.githubusercontent.com/aimlapi/api-docs/main/reference-files/t-rex.png',
    }),
  });

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

main();

201

Successfully generated image

{
  "data": [
    {
      "url": "text",
      "b64_json": "text"
    }
  ]
}

Quick Example

Let's generate an image of the specified size using a simple prompt.

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