import requests

response = requests.post(
    f"https://api.stability.ai/v2beta/stable-image/control/style-transfer",
    headers={
        "authorization": f"Bearer sk-MYAPIKEY",
        "accept": "image/*"
    },
    files={
        "init_image": open("./chicken-portrait.png", "rb"),
        "style_image": open("./glowbot.png", "rb")
    },
    data={
        "output_format": "webp"
    },
)

if response.status_code == 200:
    with open("./glow-chicken.webp", 'wb') as file:
        file.write(response.content)
else:
    raise Exception(str(response.json()))

"The bytes of the generated jpeg"

Control

Style Transfer

Style Transfer applies visual characteristics from reference style images to target images. While Style Guide extracts stylistic elements from an input image (control image) and uses it to guide the creation of an output image based on the prompt, Style Transfer specifically transforms existing content while preserving the original composition. This tool helps create consistent content across multiple assets.

Try it out

Grab your API key and head over to

How to use

Please invoke this endpoint with a POST request.

The headers of the request must include an API key in the authorization field. The body of the request must be multipart/form-data, and the accept header should be set to one of the following:

image/* to receive the image in the format specified by the output_format parameter.
application/json to receive the image encoded as base64 in a JSON response.

The body of the request should include:

init_image
style_image

The body may optionally include:

prompt
negative_prompt
style_strength
composition_fidelity
change_strength
seed
output_format

Note: for more details about these parameters please see the request schema below.

Output

The resolution of the generated image will be 1MP, with the same aspect ratio as the init_image.

Credits

Flat rate of 8 credits per successful generation. You will not be charged for failed generations.

POST

v2beta

stable-image

control

style-transfer

import requests

response = requests.post(
    f"https://api.stability.ai/v2beta/stable-image/control/style-transfer",
    headers={
        "authorization": f"Bearer sk-MYAPIKEY",
        "accept": "image/*"
    },
    files={
        "init_image": open("./chicken-portrait.png", "rb"),
        "style_image": open("./glowbot.png", "rb")
    },
    data={
        "output_format": "webp"
    },
)

if response.status_code == 200:
    with open("./glow-chicken.webp", 'wb') as file:
        file.write(response.content)
else:
    raise Exception(str(response.json()))

"The bytes of the generated jpeg"

Authorizations

authorization

string

header

required

Use your Stability API key to authentication requests to this App.

Headers

authorization

string

required

Your Stability API key, used to authenticate your requests. Although you may have multiple keys in your account, you should use the same key for all requests to this API.

Minimum string length: 1

content-type

string

required

The content type of the request body. Do not manually specify this header; your HTTP client library will automatically include the appropriate boundary parameter.

Minimum string length: 1

Example:

"multipart/form-data"

enum<string>

default:image/*

Specify image/* to receive the bytes of the image directly. Otherwise specify application/json to receive the image as base64 encoded JSON.

Available options:

image/*,

application/json

stability-client-id

string

The name of your application, used to help us communicate app-specific debugging or moderation issues to you.

Maximum string length: 256

Example:

"my-awesome-app"

stability-client-user-id

string

A unique identifier for your end user. Used to help us communicate user-specific debugging or moderation issues to you. Feel free to obfuscate this value to protect user privacy.

Maximum string length: 256

Example:

"DiscordUser#9999"

stability-client-version

string

The version of your application, used to help us communicate version-specific debugging or moderation issues to you.

Maximum string length: 256

Example:

"1.2.1"

Body

multipart/form-data

init_image

file

required

An image containing the subject you wish to restyle.

Supported Formats:

jpeg
png
webp

Validation Rules:

Width must be between 64 and 16,383 pixels
Height must be between 64 and 16,383 pixels
Total pixel count must be between 4,096 and 9,437,184 pixels
The aspect ratio must be between 1:2.5 and 2.5:1

style_image

file

required

An image containing the new style.

Supported Formats:

jpeg
png
webp

Validation Rules:

Width must be between 64 and 16,383 pixels
Height must be between 64 and 16,383 pixels
Total pixel count must be between 4,096 and 9,437,184 pixels

prompt

string

What you wish to see in the output image. A strong, descriptive prompt that clearly defines elements, colors, and subjects will lead to better results.

To control the weight of a given word use the format (word:weight), where word is the word you'd like to control the weight of and weight is a value between 0 and 1. For example: The sky was a crisp (blue:0.3) and (green:0.8) would convey a sky that was blue and green, but more green than blue.

Maximum string length: 10000

negative_prompt

string

A blurb of text describing what you do not wish to see in the output image. This is an advanced feature.

Maximum string length: 10000

seed

number

default:0

A specific value that is used to guide the 'randomness' of the generation. (Omit this parameter or pass 0 to use a random seed.)

Required range: 0 <= x <= 4294967294

style_strength

number

default:1

Sometimes referred to as denoising, this parameter controls how much influence the style_image parameter has on the generated image. A value of 0 would yield an image that is identical to the input. A value of 1 would be as if you passed in no image at all.

Required range: 0 <= x <= 1

composition_fidelity

number

default:0.9

How closely the output image's style resembles the input image's style.

Required range: 0 <= x <= 1

change_strength

number

default:0.9

How much the original image should change

Required range: 0.1 <= x <= 1

output_format

enum<string>

default:png

Dictates the content-type of the generated image.

Available options:

png,

jpeg,

webp

Response

Generation was successful.

The bytes of the generated image.

The finish-reason and seed will be present as headers.