Flux-2-Pro (generates images)

POST

/flux/v1/flux-2-pro

Official documentation: https://api.bfl.ml/scalar#tag/tasks/POST/v1/flux-pro
Please refer to the official documentation; all parameters are consistent with the official documentation.

Official pricing: https://docs.bfl.ml/pricing/

Steps for using the interface:
1.Use the video generation interface (/flux/v1/flux-2-pro), fill in the corresponding parameters, and obtain the task ID.
2.Use the query interface (/flux/v1/get_result) and fill in the task ID to obtain the result.

Price: Input (reference images): 0.015 PTC per megapixel.
Output: First megapixel is 0.03 PTC, then 0.015 PTC per additional megapixel.

Request

Header Params

Body Params application/json

Examples

Text-to-imageImage editing

{
  "prompt": "ein fantastisches bild",
  "width": 1024,
  "height": 768,
  "steps": 40,
  "prompt_upsampling": false,
  "seed": 42,
  "guidance": 2.5,
  "safety_tolerance": 2,
  "interval": 2,
  "output_format": "jpeg"
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

cURL

Text-to-imageImage editing

curl --location --request POST 'https://api.302.ai/flux/v1/flux-2-pro' \
--header 'Authorization: Bearer ' \
--header 'Content-Type: application/json' \
--data-raw '{
  "prompt": "ein fantastisches bild",
  "width": 1024,
  "height": 768,
  "steps": 40,
  "prompt_upsampling": false,
  "seed": 42,
  "guidance": 2.5,
  "safety_tolerance": 2,
  "interval": 2,
  "output_format": "jpeg"
}'

Responses

🟢200OK

application/json

Body

Example

{
    "id": "7b632a01-c2cd-46a2-ba1f-651c9e982596",
    "result": {
        "seed": 42,
        "prompt": "Change the woman’s red gown and all matching red fabric elements into a rich, elegant deep blue while preserving the dress’s design, ruffles, bow, and flowing train exactly. Keep her skin tone, makeup, hair, jewelry, pose, and body shape unchanged. Maintain the original lighting, shadows, reflections, background, carpet, and other people as they are, ensuring only the color of her clothing and attached fabric accents is altered.",
        "sample": "https://file.302.ai/gpt/imgs/20251219/1641ea67288db9efdf8c0aaa55864c48.png",
        "duration": 0,
        "end_time": 0,
        "start_time": 1766131439.7252417
    },
    "status": "Ready"
}

Modified at 2025-12-19 08:08:07

Flux-2-Flex (Query Task)

Flux-2-Pro (query task)