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Black Forest LabsOverview

FLUX.2 [flex] AI

FLUX.2 [flex] lets you tune sampling steps and guidance for the best typography and fine detail, up to 4 megapixels. Released November 2025. Try it online in the Studio or call it from code, up to 32% below the official price.

Developer
Black Forest Labs
FLUX family
Released
November 2025
Sizes
up to 4 MP
4 sizes
From
$0.046/image
1 MP
Create with FLUX.2 [flex]Get API keyAPI docs

Try it

Try FLUX.2 [flex] AI now

Runs on your balance at the price on the button; failed runs are refunded. Results are saved to your account.

Open the full-screen Studio

What it is

What is FLUX.2 [flex]?

You control the trade-off

Raise steps for the finest detail and crisp typography, or lower them for quick drafts; adjust guidance to follow the prompt more or less strictly.

Capabilities

What FLUX.2 [flex] can do

Steps & guidance

Tune quality vs speed

Typography

Strong text rendering

Up to 4 MP

1–4 megapixel output

Per-MP pricing

Pay for the size you need

Examples

FLUX.2 [flex] examples

Prompts you can load into the Studio and try.

  • Vintage travel poster for “KYOTO”, Mt. Fuji at dawn, bold serif lettering, screen-print texture

    Try it

  • Packaging mockup of a tea tin labeled “MORNING MIST — Green Tea”, studio photo

    Try it

Use cases

What people use FLUX.2 [flex] for

Images from a description
Illustrations, product visuals and concepts, up to 4 MP.
Any format
9 aspect ratios, from banners to vertical posts.

Versions

FLUX.2 [flex] in the FLUX family

Every FLUX model we offer, newest first. FLUX AI covers the whole family.

FLUX models
ModelReleasedMax sizeFrom
FLUX 3 Image KleinOctober 20264K$0.0011/image
FLUX 3October 20264K$0.0317/image
FLUX 3 VideoAugust 2026720p · 5–20 s$0.1564/s
FLUX.2 [klein] 4BJanuary 20262K$0.001/image
FLUX.2 [max]December 20254 MP$0.0644/image
FLUX.2 [pro]November 20254 MP$0.0276/image
FLUX.2 [flex]November 20254 MP$0.046/image
FLUX.1 Kontext [pro]May 20251K$0.0348/image
FLUX.1 Kontext [max]May 20251K$0.0695/image

How it compares

FLUX.2 [flex] vs similar models

FLUX.2 [flex] vs FLUX.2 [pro]

FLUX.2 [flex]

  • A different balance of price and features.

FLUX.2 [pro]

  • Lower price: $0.0276/image vs $0.046/image at 1K (40% less).
  • Edits with up to 8 input images.
  • More aspect ratios: 10 vs 9.
Full comparison

Where to use it

Three ways to use FLUX.2 [flex]

In the Studio

No code: write a prompt, pick the settings, generate. The price is shown before you run.

How to use FLUX.2 [flex]

Through the API

One key and one request shape for every model; poll the generation or get a webhook.

API tutorial

From an AI agent

Our MCP server lets Claude and other agents quote and generate for you.

MCP setup

FAQ

FLUX.2 [flex] AI questions

FLUX.2 [flex] lets you tune sampling steps and guidance for the best typography and fine detail, up to 4 megapixels. It was released in November 2025.

Black Forest Labs. FLUX.2 [flex] is part of Black Forest Labs' FLUX family — see the FLUX AI overview.

Yes, in the CheaperGen Studio — no code and no subscription needed. A 1 MP image costs $0.046, up to 32% below the official price. Step by step: [how to use FLUX.2 [flex]](/models/bfl/flux-2-flex/how-to-use).

1 MP, 2 MP, 3 MP and 4 MP.

FLUX.2 [flex]: a different balance of price and features. FLUX.2 [pro]: Lower price: $0.0276/image vs $0.046/image at 1K (40% less). Edits with up to 8 input images. Full comparison: [FLUX.2 [flex] vs FLUX.2 [pro]](/compare/flux.2-pro-vs-flux.2-flex).

Yes: one API key, POST /v1/run/{endpoint}, from $0.046/image. See the [FLUX.2 [flex] API](/models/bfl/flux-2-flex) page and its documentation.

FLUX.2 [flex] is developed by Black Forest Labs. CheaperGen provides API access and does not own the model. Trademarks belong to their respective owners.