Create Task black-forest-labs/flux-kontext-pro

POST https://www.kkiai.com/replicate/v1/models/black-forest-labs/flux-kontext-pro/predictions

Official Documentation: https://replicate.com/black-forest-labs/flux-kontext-pro

Request Parameters

Authorization

Add the Authorization parameter to the Header, with the value being the Token concatenated after Bearer

Example: Authorization: Bearer ********************

Header Parameters

Parameter	Type	Required	Description	Example
Authorization	string	Optional		Bearer {{YOUR_API_KEY}}

Body Parameters (application/json)

Parameter	Type	Required	Description
input	object	Optional
└ prompt	string	Required	A text description of the content you want to generate, or instructions on how to edit a given image.
└ input_image	string	Optional	An image to use as a reference. Must be in jpeg, png, gif, or webp format.
└ aspect_ratio	string	Optional	The aspect ratio of the generated image. Use "match_input_image" to match the aspect ratio of the input image. Default: "match_input_image". Supported: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 4:5, 5:4, 21:9, 9:21, 2:1, 1:2.
└ output_format	string	Optional	The output format of the generated image. Default: "png".
└ safety_tolerance	integer	Optional	Safety tolerance, 0 is most strict, 6 is most lenient. 2 is the maximum allowed when using input images. Default: 2
└ prompt_upsampling	boolean	Optional	Automatic prompt improvement. Default: false.

Request Example

{
    "input": {
      "prompt": "Make this a 90s cartoon",
      "input_image": "https://replicate.delivery/pbxt/N55l5TWGh8mSlNzW8usReoaNhGbFwvLeZR3TX1NL4pd2Wtfv/replicate-prediction-f2d25rg6gnrma0cq257vdw2n4c.png",
      "aspect_ratio": "match_input_image",
      "output_format": "jpg",
      "safety_tolerance": 2,
      "prompt_upsampling": false
    }
  }

cURL Example

curl --location --request POST 'https://www.kkiai.com/replicate/v1/models/black-forest-labs/flux-kontext-pro/predictions' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "input": {
      "prompt": "Make this a 90s cartoon",
      "input_image": "https://replicate.delivery/pbxt/N55l5TWGh8mSlNzW8usReoaNhGbFwvLeZR3TX1NL4pd2Wtfv/replicate-prediction-f2d25rg6gnrma0cq257vdw2n4c.png",
      "aspect_ratio": "match_input_image",
      "output_format": "jpg",
      "safety_tolerance": 2,
      "prompt_upsampling": false
    }
  }'

Response

🟢 200 Success

Response Body

Parameter	Type	Required	Description
input	object	Required
└ aspect_ratio	string	Optional
└ input_image	string	Optional
└ output_format	string	Optional
└ prompt	string	Required
└ prompt_upsampling	boolean	Optional
└ safety_tolerance	integer	Optional

Response Example

{
    "id": "b1qw7g8h9xrma0crakst3xbj8m",
    "model": "black-forest-labs/flux-kontext-pro",
    "version": "hidden",
    "input": {
        "aspect_ratio": "match_input_image",
        "input_image": "https://replicate.delivery/pbxt/N55l5TWGh8mSlNzW8usReoaNhGbFwvLeZR3TX1NL4pd2Wtfv/replicate-prediction-f2d25rg6gnrma0cq257vdw2n4c.png",
        "output_format": "jpg",
        "prompt": "Make this a 90s cartoon",
        "prompt_upsampling": false,
        "safety_tolerance": 2
    },
    "logs": "",
    "output": null,
    "data_removed": false,
    "error": null,
    "status": "starting",
    "created_at": "2025-07-29T06:51:12.591Z",
    "urls": {
        "cancel": "https://api.replicate.com/v1/predictions/b1qw7g8h9xrma0crakst3xbj8m/cancel",
        "get": "https://api.replicate.com/v1/predictions/b1qw7g8h9xrma0crakst3xbj8m",
        "stream": "https://stream.replicate.com/v1/files/bcwr-3g5lstbmjxzikqt225npeguwi4bu47ndhirdgete5npgzzzogkpq",
        "web": "https://replicate.com/p/b1qw7g8h9xrma0crakst3xbj8m"
    }
}