FLUX.1 Kontext Pro

POST /v3/async/flux-1-kontext-pro

FLUX.1 Kontext Pro

cURL

curl --request POST \
  --url https://api.myrouter.ai/v3/async/flux-1-kontext-pro \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "prompt": "<string>",
  "images": [
    "<string>"
  ],
  "guidance_scale": 123,
  "aspect_ratio": "<string>",
  "seed": 123,
  "safety_tolerance": "<string>"
}
'

import requests

url = "https://api.myrouter.ai/v3/async/flux-1-kontext-pro"

payload = {
    "prompt": "<string>",
    "images": ["<string>"],
    "guidance_scale": 123,
    "aspect_ratio": "<string>",
    "seed": 123,
    "safety_tolerance": "<string>"
}
headers = {
    "Content-Type": "<content-type>",
    "Authorization": "<authorization>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': '<content-type>', Authorization: '<authorization>'},
  body: JSON.stringify({
    prompt: '<string>',
    images: ['<string>'],
    guidance_scale: 123,
    aspect_ratio: '<string>',
    seed: 123,
    safety_tolerance: '<string>'
  })
};

fetch('https://api.myrouter.ai/v3/async/flux-1-kontext-pro', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.myrouter.ai/v3/async/flux-1-kontext-pro",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'prompt' => '<string>',
    'images' => [
        '<string>'
    ],
    'guidance_scale' => 123,
    'aspect_ratio' => '<string>',
    'seed' => 123,
    'safety_tolerance' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>",
    "Content-Type: <content-type>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.myrouter.ai/v3/async/flux-1-kontext-pro"

	payload := strings.NewReader("{\n  \"prompt\": \"<string>\",\n  \"images\": [\n    \"<string>\"\n  ],\n  \"guidance_scale\": 123,\n  \"aspect_ratio\": \"<string>\",\n  \"seed\": 123,\n  \"safety_tolerance\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("Authorization", "<authorization>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.myrouter.ai/v3/async/flux-1-kontext-pro")
  .header("Content-Type", "<content-type>")
  .header("Authorization", "<authorization>")
  .body("{\n  \"prompt\": \"<string>\",\n  \"images\": [\n    \"<string>\"\n  ],\n  \"guidance_scale\": 123,\n  \"aspect_ratio\": \"<string>\",\n  \"seed\": 123,\n  \"safety_tolerance\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.myrouter.ai/v3/async/flux-1-kontext-pro")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = '<content-type>'
request["Authorization"] = '<authorization>'
request.body = "{\n  \"prompt\": \"<string>\",\n  \"images\": [\n    \"<string>\"\n  ],\n  \"guidance_scale\": 123,\n  \"aspect_ratio\": \"<string>\",\n  \"seed\": 123,\n  \"safety_tolerance\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

200

{
  "task_id": "<string>"
}

FLUX.1 Kontext Pro is a model that improves prompt adherence and font generation consistency while maintaining efficient speed and suitability for editing tasks.

Request Headers

Content-Type · string · required

Enum: application/json

Authorization · string · required

Bearer authentication format: Bearer {{API Key}}.

Request Body

prompt · string · required

The prompt used for image generation.

images · string[]

List of images used for image generation. Supports up to 4 images.

guidance_scale · number

Guidance scale for controlling generation. Default: 3.5. Range: [1.0 ~ 20.0].

aspect_ratio · string

Aspect ratio of the generated image.
Options: 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, 9:21

seed · integer

Random seed. Default: -1, where -1 means use a random seed. Range: [-1 ~ 2147483647].

safety_tolerance · string

Only supported in text-to-image mode.
Safety tolerance level for generated images, 1 is the strictest, 5 is the most permissive. Default: 2.
Options: 1, 2, 3, 4, 5

Response

task_id · string · required

The task_id of the async task. Use the task_id to call the Get Async Task Result API to retrieve the generated result.