Black Forest Labs FLUX

Image playground

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Generate or edit images with FLUX 3 Image and FLUX.2 using hosted image URLs or uploaded PNG, JPEG, and WebP references.

FLUX 3 adds grounding, 4K resolution tiers, 10-image composition, and precise bounding-box editing through the BFL API. FLUX 3 documentation.

BFL: https://api.bfl.aior Foundry base endpoint: https://resource.services.ai.azure.com or https://resource.openai.azure.com

API Base URL

Model Endpoint

Authentication Mode

API Key

Advanced

Seed (Optional)

Image Size

Safety Tolerance (0-5)

Output Format

Remove C2PA Metadata

Delivery and model tuningConfigure webhooks or FLUX flex sampling only when the workflow requires them.

Webhook URL (Optional)

Webhook Secret (Optional)

Reference source

Image URLs Upload files

Input Image URLs (one per line)

Create your first FLUX image

Write a prompt and optionally add reference images. Results will appear here with full-size preview and download actions.