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Image model · Black Forest Labs

FLUX.1 Schnell six seconds a frame

The fastest model on the roster, and not by a few seconds. Four steps instead of twenty-odd — exactly enough to see whether an idea for a frame works at all, before you send the same brief through a model that will finish it.

Rendered by this model

Three bars of soap on a concrete shelf. Frame done in six seconds.
Three bars of soap on a concrete shelf. Frame done in six seconds.This was generated by the model this page is about, exactly the way the app runs it. It is not a photo shoot and not client work.

Specification

Built by
Black Forest Labs
Starts from
a written brief
Size
512 – 2048 px
Reference photos
none
Render time
about 6s
Cost
1 credit per image

What it is good for

Six seconds
Four versions of one brief in the time Nano Banana Pro takes to get halfway through the first. When you are hunting for a composition that changes how you work, not just how fast.
Cheap to try
An image costs one credit on every model, so four attempts here cost the same as four on the most expensive one — you just know the answer after a minute rather than a quarter of an hour.
For editing the brief
Change one sentence and see immediately what happened. On a slow model the same loop takes long enough that you stop closing it.

When to pick something else

This is not a finishing model. Detail is simplified, texture flattened, and on a complex composition it drops part of the brief — four sampling steps simply do not stretch further. Once you know what the frame should look like, send the same brief through FLUX.1 Dev or FLUX1.1 Pro Ultra. No reference photos and no text in the image here.

See every model

How to brief this model

The things this engine handles differently from the rest. The habits that hold for every model are collected separately, in the help centre.

  1. Use it for one thing: finding out whether an idea for a frame holds up. Six seconds a version lets you reject four compositions faster than one renders in Nano Banana Pro.
  2. Keep the brief short. Given a complicated setup this model drops some of the conditions — four generation steps simply do not stretch further.
  3. Do not judge texture or detail from it. "The material looks flat" at this stage says nothing about how the final version will come out.
  4. Once the framing is right, run exactly the same brief through FLUX.1 Dev or FLUX1.1 Pro Ultra. Do not rewrite it — the model should be the variable, not the wording.
  5. There is neither text in image nor reference photographs here, so a headline and your own product both need a different engine from the start.
How to write a brief that works

Questions about this model

Try this model on your own product

Sign up without a card and get 40 credits. Switching model is one click, so you can send the same brief through several of them and keep the best frame.