f-2-klein-9b/text-to-image

POST

/openapi/v2/rhart-image/f-2-klein-9b/text-to-image

A 9-billion parameter ultra-fast text-to-image model from Black Forest Labs. As a derivative series of the professional-grade FLUX.2, Klein maintains near-top-tier generation quality through architectural optimization and distillation while significantly reducing hardware requirements and inference latency. Applications cover real-time creative design, social media content generation, rapid UI/UX prototyping, game art previews, educational visualization, and other fields—particularly suitable for interactive applications requiring low latency and cost-friendly hardware.

Request

Authorization

Header Params

Body Params application/jsonRequired

Example

{
    "36##text": "At dawn, a magnificent ancient Chinese pavilion stands by the tranquil misty lakeside. A beautiful young woman, dressed in elegant and flowing traditional Hanfu, is gracefully playing the guqin. Soft green willow branches sway in the breeze, and pale pink peach blossoms slowly drift through the air.",
    "51##select": "1",
    "35##value": 1024,
    "34##value": 1024,
    "54##file_type": "PNG"
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://www.runninghub.ai/openapi/v2/rhart-image/f-2-klein-9b/text-to-image' \
--header 'Authorization: Bearer [Your API KEY]' \
--header 'Authorization: Bearer [Your API KEY]' \
--header 'Content-Type: application/json' \
--data-raw '{
    "36##text": "At dawn, a magnificent ancient Chinese pavilion stands by the tranquil misty lakeside. A beautiful young woman, dressed in elegant and flowing traditional Hanfu, is gracefully playing the guqin. Soft green willow branches sway in the breeze, and pale pink peach blossoms slowly drift through the air.",
    "51##select": "1",
    "35##value": 1024,
    "34##value": 1024,
    "54##file_type": "PNG"
}'

Responses

🟢200成功

application/json

Task result query endpoint: /openapi/v2/query

Body

Examples

Submit response exampleTask success response example

{
    "taskId": "2013508786110730241",
    "status": "RUNNING",
    "errorCode": "",
    "errorMessage": "",
    "results": null,
    "clientId": "f828b9af25161bc066ef152db7b29ccc",
    "promptTips": "{\"result\": true, \"error\": null, \"outputs_to_execute\": [\"4\"], \"node_errors\": {}}"
}

Modified at 2026-03-28 04:00:16

f-2-klein-9b/text-to-image-lora

f-2-klein-4b/text-to-image