FLUX.2 Pro prompt guide
FLUX.2 Pro from Black Forest Labs is a reliable all-round image model. Lead with the subject, then the setting, the style and the light.
What FLUX.2 Pro takes
- Takes a prompt and up to 4 reference images.
- Aspect ratios: 1:1, 3:4, 4:3, 4:5, 9:16, 16:9.
- Settings: 1K.
- From 2.25 credits per image.
The order to write a prompt in
- The subject first: who or what, and what it is doing.
- The setting and the moment.
- The style: photo, illustration or 3D, with the light and the lens.
- For an edit: what to change, then what must stay as it is.
Tips
- Put the most important thing first: the model weighs the start of a prompt the most.
- Describe what you want to see rather than what to avoid; there is no negative prompt.
- Name the light and the lens for a photo look: soft window light, golden hour, 85 mm portrait lens, macro.
- Refer to the images you add by their order: "the lamp from the second image in the room from the first". Up to 4 images.
- It runs on the free plan, so it is a good place to try a prompt.
Example prompts
A ceramic mug of black coffee on a linen tablecloth by an open window, steam rising, a croissant on a plate beside it. Soft morning light, shallow depth of field, 50 mm lens, warm natural colours.
A pair of white running shoes floating at an angle against a pastel orange background, a soft shadow below. Clean studio light, crisp commercial product photo.
Change the season to winter: snow on the ground and the rooftops, a grey sky. Keep the house, the car and the camera angle exactly as they are.