FLUX 3 Klein

FLUX 3 Klein is the smaller, cheaper sibling of FLUX 3 Image from Black Forest Labs. It generates images from a prompt at 1K, 2K, or 4K, and its edit mode changes an image or combines up to 10 reference images into a new one.

1K costs 1.5 credits, 2K costs 5.5 credits, and 4K costs 22 credits per image. Edits cost the same as generation at each size, whatever the number of references. Ten 1K drafts cost 15 credits; one 2K final adds 5.5, for 20.5 in total.

Upload up to 10 images in edit mode and say in the prompt what to take from each. References larger than 4 megapixels are scaled down to 4 MP before they are sent. The references themselves are not billed; only the size of the output is.

You choose an aspect ratio and a tier separately: 1K (about 1 megapixel), 2K (about 4 megapixels), or 4K. Each side is between 256 and 4096 pixels.

Put the exact words you want in quotes in the prompt and check the spelling on every result, as with any image model. When the text must be exactly right, Ideogram 4.5 is the safer pick at 9 credits at Medium.

FLUX 3 Image is the larger and more expensive model: 8, 30, and 120 credits at 1K, 2K, and 4K, against Klein's 1.5, 5.5, and 22. We have not run a side-by-side on fine detail, so for a hero image generate the same prompt on both before you commit to the cheaper one. FLUX.2 Klein 4B costs 1 credit per image, which is cheaper still.

Yes. Images you make on Morphed are licensed for commercial use. Trademark clearance for logos and brand names in your prompts and references is your responsibility.