Video

FLUX 3 Max

Changed on

FLUX 3 with stronger prompt adherence.

post/generate/video/black-forest-labs/flux-3-max

Request

  • Base URL: https://api.krea.ai
  • URL: https://api.krea.ai/generate/video/black-forest-labs/flux-3-max
  • 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
start_imagestring uri nullable

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

end_imagestring uri nullable

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

durationinteger
resolution'720p' | '1080p'
aspect_ratio'auto' | '21:9' | '2:1' | '16:9' | '4:3' | '1:1' | '3:4' | '9:16'
generate_audioboolean
seedinteger
reasoning_level'low' | 'high'

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