Stable Image Ultra API Document

Our most advanced text to image generation service, Stable Image Ultra creates the highest quality images with unprecedented prompt understanding. Ultra excels in typography, complex compositions, dynamic lighting, vibrant hues, and overall cohesion and structure of an art piece. Made from the most advanced models, including Stable Diffusion 3, Ultra offers the best of the Stable Diffusion ecosystem.

Credits

The service uses 16 credits per successful result. You will not be charged for failed results.

Example Request and Response

API Documentation

API Endpoint	Method
/api/generate/ultra	POST

Request Header

Parameter	Description
Authentication	Use your API key to authentication requests to this App.

Request Body

The request should include a JSON object in the body with the following parameters:

Parameter	Type	Required	Description
prompt	string	Yes	The text description or prompt used to generate the image.
width	int	Yes	The desired pixel width for the generated image should be between 320 and 1536 pixels, in an increment divisible by 64.
height	int	Yes	The desired pixel height for the generated image should be between 320 and 1536 pixels, in an increment divisible by 64.
aspect_ratio	string	No	Enum: 16:9 1:1 21:9 2:3 3:2 4:5 5:4 9:16 9:21 Default: 1:1 Controls the aspect ratio of the generated image.
seed	init	No	Random noise seed (omit this option or use 0 for a random seed).
negative_prompt	string	No	Keywords of what you do not wish to see in the output image. This is an advanced feature.This parameter does not work with sd3-large-turbo.

Response Body

The response should include a JSON object in the body with the following parameters:

Parameter	Type	Description
code	int	Status Code, 0 for success callback, -1 for failure callback
message	string	Callback message, 'success' for success, failure reason for failure
data	object	Image Details

Image Details

Parameter	Type	Description
image	string	Return the base64 encoded image of the generated picture.
seed	int	The seed used as random noise for this generation.

Example Request

import requests
import json
import base64

data = {
    'prompt': 'A lighthouse on a cliff',
    'height': 1024,
    'width': 1024,
}

url = "https://www.aithriving.com/api/generate/ultra"
headers = {
    'Accept': 'application/json',
    'Authorization': 'your-auth-token',
}

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

response_json = response.json()
if response_json.get('code') == 0:
    image_data = base64.b64decode(response_json['data']['image'])
    with open("./result.png", 'wb') as file:
        file.write(image_data)

Example Response

{
  "code": 0,
  "message": "success",
  "data": {
    "image": "base64 encoded image data",
    "seed": 1050625087
  }
}