ImageFast

FLUX.1 Kontext [max]

by Black Forest Labs

Edit images with plain-language instructions while keeping people and products intact.

Spec sheet

Model ID: bfl/flux-kontext-max
Type: Image
Max output: 1 MP
Speed: Fast
Capabilities: Image editing
Character consistency
Text rendering

About the model

Kontext understands both the image you give it and the change you describe. Ask it to swap a background, change a jacket color, add a caption or restage a scene, and it keeps faces, logos and composition consistent across repeated edits.

Swap it anytime

Every model takes the same request, so moving to another one means changing the model ID and nothing else.

Call it in a few lines.

request.sh

curl https://api.monogram.dev/v1/generations \
  -H "Authorization: Bearer $MONOGRAM_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bfl/flux-kontext-max",
    "input": {
      "image_url": "https://files.example.com/portrait.jpg",
      "prompt": "Change the jacket to emerald velvet, keep everything else"
    }
  }'