Image

Flux.1 Dev

Changed on

Fast model. Best for LoRAs.

post/generate/image/bfl/flux-1-dev

Request

  • Base URL: https://api.krea.ai
  • URL: https://api.krea.ai/generate/image/bfl/flux-1-dev
  • Auth: HTTP bearer

Headers

X-Webhook-URLstring uri

URL to receive a POST request when the job completes. The webhook will receive the job data including results. When signing is configured, deliveries are signed with ECDSA P-256 (ES256); verify them with the keys at https://api.krea.ai/.well-known/jwks.json (see X-Krea-Webhook-* headers). Treat requests without these headers as unauthenticated.

Request body

promptstring required
seednumber
stepsinteger
widthnumber
heightnumber
image_urlstring uri nullable

Can be an external URL, base64 data URI, or uploaded asset URL.

strengthnumber

Denoising strength when an input image is provided. 0 keeps the input image, 1 fully replaces it.

guidance_scalenumber

Classifier-free guidance scale. Higher values follow the prompt more strictly. Default 3.0.

Response

The resulting job data. This will be returned in a pending state until the job is completed. See /jobs/{id} for retrieving the results.

job_idstring uuid required
status'backlogged' | 'queued' | 'scheduled' | 'processing' | 'sampling' | 'intermediate-complete' | 'completed' | 'failed' | 'cancelled' required
created_atstring date-time required
completed_atunknown required
resultunknown required
progressnumber nullable

Changes