Where to use the FLUX AI image generator and save results

Start with the official FLUX Playground, understand how a host differs from a model, and keep the evidence from your first image tests.

Updated 5 min read

To try the FLUX AI image generator without writing code, start with Black Forest Labs’ official browser Playground at playground.bfl.ai. Its Quick Start (opens in a new tab) distinguishes that browser route from direct API access, which lets software request generations. Save the image and the details behind it as two parts of the same test. fenbs can keep your findings outside the image tool so a different assistant can help you continue later.

First decide what you want to learn. “Can I make a useful illustration for this page?” is a better first question than “Which FLUX site is best?” A small, repeatable test gives you something to inspect and a reason to choose the next step.

Which route should you start with?

A model name and a website name answer different questions. The model identifies what generates the result; the service determines where you work and which controls you can use. BFL’s model overview (opens in a new tab) describes model-specific choices, so keep the full model name with each test instead of recording only “FLUX.”

Choose a starting route by the work you need to do
RouteWhen to consider itWhat to check first
Official BFL PlaygroundYou want to test an image idea in a browser.The model you select and the credits used for the test.
Direct BFL APIYou need software to submit and retrieve results.Credentials, the returned polling address, and permanent result storage.
A third-party hosted toolYou are considering a particular host’s interface.That host’s exact model offering, account terms, billing, and export controls.
A proposed local setupYou want to investigate running on your own equipment.The exact model’s official availability, license, installation instructions, and hardware needs before proceeding.

Do not treat an unfamiliar “FLUX” website as the official Playground. BFL’s documentation does not establish identical access across third-party hosts, and this browser walkthrough does not establish a local installation recipe. For a local route, first verify the exact model against its official documentation; do not download something merely because its filename includes FLUX.

How do you make a useful first browser test?

The official starting point uses a BFL account and credits; both Playground and direct API use consume credits. Follow the account instructions in the Quick Start, then keep your first test small enough that you can explain why you accepted or rejected it.

  1. Open playground.bfl.ai in your browser and use your BFL account. Check the model you are using before starting.
  2. Write one sentence describing the image you need. Add the subject, visual treatment, and arrangement that matter for the actual use.
  3. For example, try: “Editorial illustration of a ceramic coffee cup on a pale blue desk, colored pencil texture, cup on the right with open space on the left.”
  4. Generate a result and check it against that request. Record what was right and the single biggest problem.
  5. Change one part of the wording for a second test. Keep both outputs and their exact prompts so the comparison has a clear purpose.

The example is a starting description, not a tested guarantee. If the first image has the right texture but no usable space for a headline, change the arrangement request first. Changing the texture, subject, and arrangement together makes the result harder to interpret.

What should you compare before choosing a result?

Review at the size and shape where the image will be used. A composition that looks attractive by itself might leave no space for the text beside it. List the requirements before judging: recognizable subject, useful crop, clear contrast, and details a person must inspect.

Separate preference from a failed requirement. “I prefer the softer shadows” describes taste; “the required handle is missing” describes a concrete problem. Our AI model evaluation guide explains how to turn a trial into a fair check, while the guide for graphic designers covers the broader design review.

Record an honest result such as “usable as a draft illustration; lettering and final crop still need review.” Keep that finding with your prompts in fenbs, so the next assistant sees the remaining work as well as the preferred picture.

How do you save something you can use later?

Keep an actual image file in storage you control, plus a short recipe describing how you made it. For direct API work, BFL’s integration guide (opens in a new tab) says to download the sample after the result is Ready. Its delivery URL is temporary and is not intended as permanent storage or a direct asset link for your readers.

  • Asset: the downloaded file, its stable location, and a name that distinguishes it from earlier attempts.
  • Recipe: provider, model identifier, exact prompt, settings used, and any original reference images.
  • Review: what passed, what failed, which version you accepted, and who still needs to check it.
  • Next step: one specific action, such as comparing the accepted crop inside the page layout.

BFL’s MCP guide (opens in a new tab) also documents recent generation history and variations that reuse a prior request’s inputs in a compatible assistant. MCP is a standard connection for an assistant to use an outside tool. That history is useful, but the guide does not establish an indefinite archive or a universal prompt export.

Why might another route produce a different image?

Before blaming the prompt, compare the full model identifier, provider, dimensions, settings, and source images. Treat a change of route as a new test. A matching prompt or seed is not evidence that different models or providers will produce the same pixels.

The AI model meaning guide explains why the model and the app are separate choices. When you need to revise an existing picture rather than generate a fresh one, use the separate FLUX Kontext editing walkthrough. More guides to evaluating your options live in Choosing an AI model.

How fenbs helps

Never lose the work you did in an AI session

After a useful AI session, save it in fenbs: the key observations, findings, research and context. Then carry on from exactly where you left off, on any device and in any other AI. The next AI you connect reads it at the start of the session, so you never have to explain the same problem again.

Create a free account

Free for up to 5 people and 50 open tasks · No credit card · Works with Claude, ChatGPT, Cursor and more

How to keep your FLUX findings with fenbs

Keep the useful work so you can carry on from exactly where you left off, on any device and in any other connected AI. A few clear sentences are enough; you do not need to copy every experiment.

  1. Create a free account.
  2. Save the exact prompt, model name, settings, and a link to the image file you kept.
  3. Write which result you chose, why you chose it, and what still needs checking.
  4. Connect a supported assistant from Integrations. Ask it to read the saved work before helping with the next version.
  5. Before stopping, save what changed and the next thing to do. Read that same record when you return.

fenbs does not generate FLUX images or automatically import the Playground’s history. Keep image production in your chosen tool; use fenbs when the tested wording, decisions, and next step need to reach another assistant. A single image download may be enough when there is no ongoing work to carry forward.

Questions people ask.

Do I need an API key to start with the official Playground?

The browser Playground is the route for trying FLUX without writing API code. Direct API credentials are a separate setup in the BFL dashboard.

Is every website with FLUX in its name operated by BFL?

Do not assume that. Start with the Playground address linked from BFL’s own documentation, and check a third-party host’s identity and terms separately.

Can I bookmark an API delivery URL instead of downloading?

BFL describes delivery URLs as temporary. Download the result and keep the file in durable storage rather than relying on that URL.

Does saving my prompt preserve the complete experiment?

No. Keep the full model name, provider, settings, source images, output file, and review findings alongside the wording.

Start with one thing.

Free for up to 5 people and 50 open tasks · No credit card · Works with Claude, ChatGPT, Cursor and more

There is nothing to set up first. Write one line and you’ve started.