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AI image · Black Forest Labs · 2026

Flux

Flux is Black Forest Labs' family of image-generation models — a German studio founded by former Stable Diffusion people. You describe an image, it creates it: photorealistic, faithful to your prompt, and even able to spell out text correctly. One version has public weights you can use for free.

Image 5 min read Updated 2026-05-25
— What it is

Flux, in plain words

In plain words: it's an image generator that actually respects what you ask for (a man on the left, a red chair, readable text) where others just improvise.

The family has a few versions: Flux Pro (the most polished, through a paid API), Flux Dev (open weights, free to use on capable hardware), and Flux Kontext, which is built to edit an existing image from a text instruction.

The fact that there's an open version with public weights makes it a go-to for anyone who wants to tinker locally or build Flux into a product.

What I use it for

The cases where Flux is my first pick:

  • Website visuals: photorealistic illustrations for hero sections, blocks, blog posts. Better than stock photos.
  • Product mockups: showing off a product idea with a clean visual before you pay a designer.
  • Text inside the image: posters, flyers, thumbnails with readable text. This is one of Flux's strengths.
  • Editing with Kontext: "remove that passerby in the background," "change the t-shirt color to blue." More precise than a Midjourney edit.
  • Brand variations: cranking out 20 consistent visuals in the same style for Instagram.

How it compares

vs Midjourney v7: Midjourney keeps the edge on raw good looks (that "magazine" render straight out of the box). Flux wins on prompt fidelity and text inside the image.

vs Imagen 4 (Google): Imagen 4 is faster and cheaper on its Fast variant. Flux gives you more predictable quality and the open Dev version.

vs DALL-E 3 / ChatGPT: Flux is more precise on complex compositions. DALL-E is still handy because it's built right into ChatGPT.

What it costs

API pricing as of May 2026 (source: blackforestlabs.ai):

  • Flux Pro: $0.04 to $0.06 per image depending on resolution and variant
  • Flux Dev: public weights, free to use if you have a capable GPU (24 GB of VRAM recommended)
  • Also available through Replicate, Fal.ai, and Together.ai at similar prices

No direct consumer subscription. Access mostly runs through third-party platforms (Replicate, Krea, Freepik).

My take

When I have a precise visual in mind, I go to Flux. When I just want "something pretty," Midjourney is quicker to reach for.

Flux Kontext genuinely surprised me for editing existing photos. I no longer need Photoshop for 80% of the touch-ups I used to do.

If you monetize your visuals or you want fine technical control, Flux has become a must-have. Otherwise, Midjourney is plenty.

Quick questions

Is Flux Dev really free?

Flux is Black Forest Labs' family of image-generation models, launched in 2024. Known for prompt fidelity and text inside the image, it comes in Flux Pro (API), Flux Dev (open weights), and Flux Kontext (image editing).

Which version should I start with?

Flux Pro through Replicate or Krea is the simplest. A few dollars is enough for dozens of tries.

Does Flux write text well inside an image?

Yes, it's one of its strengths since version 1.1.

Verified 2026-05-25 · next review 2026-11-25

Prices verified on Black Forest Labs and Replicate. My own use: website visuals, mockups, Kontext edits.

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