flux-pro

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

• flux-pro

Model Overview

This is first version of Flux Pro, but it generates images of unmatched quality, outperforming popular models like Midjourney v6.0, DALL·E 3 (HD), and SD3-Ultra.

You can also view a detailed comparison of this model on our main website.

Model	Properties of Generated Images
flux-pro	Format: JPEG, PNG Min size: 256x256 Max size: 1440x1440 Default size: 1024x768 For both height and width, the value must be a multiple of 32.

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

post

Authorizations

Body

modelundefined · enumRequiredPossible values:

image_sizeany ofOptionalDefault: landscape_4_3

or

string · enumOptional

The size of the generated image.

Possible values:

num_inference_stepsinteger · min: 1 · max: 50Optional

The number of inference steps to perform.

guidance_scalenumber · min: 1 · max: 20Optional

The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you.

safety_tolerancestring · enumOptional

The safety tolerance level for the generated image. 1 being the most strict and 5 being the most permissive.

Default: 2Possible values:

output_formatstring · enumOptional

The format of the generated image.

Default: jpegPossible values:

promptstring · max: 4000Required

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

num_imagesnumber · min: 1 · max: 4OptionalDefault: 1

seedinteger · min: 1Optional

The same seed and the same prompt given to the same version of the model will output the same image every time.

Responses

201Success

post

HTTPcURLJavaScriptPython

POST /v1/images/generations HTTP/1.1
Host: api.aimlapi.com
Authorization: Bearer <YOUR_AIMLAPI_KEY>
Content-Type: application/json
Accept: */*
Content-Length: 178

{
  "model": "flux-pro",
  "image_size": "landscape_4_3",
  "num_inference_steps": 1,
  "guidance_scale": 1,
  "safety_tolerance": "2",
  "output_format": "jpeg",
  "prompt": "text",
  "num_images": 1,
  "seed": 1
}

201Success

No content

Quick Example

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

The maximum value for both width and height is 1440, and the minimum is 256. The value must be a multiple of 32.

Python

import requests


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={
            "prompt": "Rabbit singing",
            "model": "flux-pro",
            'image_size': {
                "width": 1024,
                "height": 320
            }
        }
    )

    response.raise_for_status()
    data = response.json()

    print("Generation:", data)


if __name__ == "__main__":
    main()

JS

async function main() {
  try {
    const response = await fetch('https://api.aimlapi.com/v1/images/generations', {
      method: 'POST',
      headers: {
        // Insert your AIML API Key instead of <YOUR_AIMLAPI_KEY>:
        'Authorization': 'Bearer <YOUR_AIMLAPI_KEY>',
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        prompt: 'Rabbit singing',
        model: 'flux-pro',
        image_size: {
          width: 1024,
          height: 320
        }
      }),
    });

    if (!response.ok) {
      throw new Error(`HTTP error! Status: ${response.status}`);
    }

    const data = await response.json();
    console.log('Generation:', data);

  } catch (error) {
    console.error('Error:', error);
  }
}

main();

Response

Generation: {'images': [{'url': '
https://cdn.aimlapi.com/squirrel/files/penguin/xbv7ajizigDvmBpUEd4Gl_48c13ea3ffda4164b124ac5b84cdf9d3.jpg
', 'width': 1024, 'height': 320, 'content_type': 'image/jpeg'}], 'timings': {}, 'seed': 782392770, 'has_nsfw_concepts': [False], 'prompt': 'Rabbit singing'}

We obtained the following nice 1024x320 image by running this code example:

"Rabbit singing"