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Image Models
Img2Img

In order to deploy the model you can use the identifier below:

  • Stable Diffusion img2img: sd-img-2-img

Pass a text prompt and an initial image to condition the generation of new images. Once you’ve deployed a model, you can follow this example of how to call the deployed endpoint:

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Request Parameters

  curl --location --request POST 'https://run.cerebrium.ai/sd-img-2-img-webhook/predict' \
      --header 'Authorization: <API_KEY>' \
      --header 'Content-Type: application/json' \
      --data-raw '{
        "prompt": "a photo of an astronaut riding a horse on mars.",
        "image": "<BASE_64_STRING>"
        "num_inference_steps": 50,
        "guidance_scale": 7.5,
        "num_images_per_prompt": 1,
        "negative_prompt": "",
        "seed": 120,
        "file_url": "https://your-url.com/image.png"
        "webhook_endpoint": "https://your-url.com"
      }'
Authorizationrequired
string

This is the Cerebrium API key used to authenticate your request. You can get it from your Cerebrium dashboard.

promptrequired
string

The prompt you would like your model to generate.

imageoptional
string

This is a base64 encoded string of your initial image.

num_inference_stepsoptional
integer

The number of steps you would like the model to take to generate the image. In general, the results are better the more steps you use, however the more steps, the longer the generation takes. It defaults to 50 steps and is an optional parameter.

guidance_scaleoptional
float

A way to increase the adherence to the conditional signal that guides the generation (text, in this case) as well as overall sample quality. In simple terms it forces the generation to better match the prompt potentially at the cost of image quality or diversity. This defaults to 7.5 and is an optional parameter.

num_images_per_promptoptional
integer

The number of image variations you would like the model to generate. This is an optional parameter which defaults to 1.

negative_promptoptional
string

The negative prompt is a parameter that tells Stable Diffusion what you don’t want to see in the generated images. This is an optional parameter that has an empty default value.

seedoptional
integer

Make sure that generations are the exact same for the same prompts and images.

file_urloptional
string

The url of a publicly accessible file where we can fetch your image from. Better to use for large files than base64 encoding.

webhook_endpointoptional
string

The url endpoint you would like us to send the image results to once it has finished generating.

{
    "run_id": "<UUID_STRING>",
    "message": "Successfully generated image",
    "result": [<BASE_64_STRING>]
}

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Response Parameters

run_idrequired
string

A unique identifier for the run that you can use to associate prompts with webhook endpoints.

messagerequired
string

Whether of not the response was successful

imagesrequired
string

An array of base64 encoded strings of the image that you can convert into an image