AI image model comparison

FLUX.2 Flex vs FLUX.2 Pro

Image quality, cost per image, and editing features compared side by side. Or skip the guesswork and generate with both.

black-forest-labs logo

Black Forest Labs

FLUX.2 Flex

FLUX.2 [flex] excels at rendering complex text, typography, and fine details, and supports multi-reference editing in the same unified architecture.

Per image
$0.06
Output / 1M
$14.65
Image Elo
1200
black-forest-labs logo

Black Forest Labs

FLUX.2 Pro

A high-end image generation and editing model focused on frontier-level visual quality and reliability.

Per image
$0.03
Output / 1M
$7.32
Image Elo
1195

At a glance

Quick verdict

Which model wins on the things that matter most when you're making images.

Cheaper per image

black-forest-labs logo

FLUX.2 Pro

$0.03 vs $0.06, 2x cheaper

Better image quality

black-forest-labs logo

FLUX.2 Flex

1200 vs 1195 Elo in blind votes

Better at editing

Not available

Only one editing score is available

Newer release

black-forest-labs logo

FLUX.2 Flex

Released November 25, 2025

Quality

Image quality rankings

Elo ratings from Design Arena, where people vote between two anonymous images made from the same prompt. Higher is better.

Image generation

black-forest-labs logoFLUX.2 Flex#7 · 55.4% wins1200
black-forest-labs logoFLUX.2 Pro#8 · 49.1% wins1195

Image editing

black-forest-labs logoFLUX.2 FlexNot available
black-forest-labs logoFLUX.2 Pro#6 · 47.1% wins1136

Graphic design

black-forest-labs logoFLUX.2 Flex#7 · 54.6% wins1189
black-forest-labs logoFLUX.2 Pro#8 · 46.9% wins1173

Logos

black-forest-labs logoFLUX.2 Flex#7 · 54% wins1208
black-forest-labs logoFLUX.2 Pro#10 · 48.8% wins1193

Pricing

FLUX.2 Flex vs FLUX.2 Pro price per image

What each image actually costs, plus the underlying API rates. Cheaper option highlighted.

Metricblack-forest-labs logoFLUX.2 Flexblack-forest-labs logoFLUX.2 Pro
Cost per imageEstimated, ~1 megapixel (1024×1024)$0.06$0.03
Image outputPer 1M image tokens$14.65$7.32
Tokens per imageHow many image tokens one ~1MP image uses4,0964,096
Prompt textPer 1M input tokensIncludedIncluded

What it costs in practice

Estimated totals at standard resolution.

Single image

1 image

black-forest-labs logoFLUX.2 Flex$0.06
black-forest-labs logoFLUX.2 Pro$0.03

Social media batch

50 images

black-forest-labs logoFLUX.2 Flex$3
black-forest-labs logoFLUX.2 Pro$1.50

Product catalog

1,000 images

black-forest-labs logoFLUX.2 Flex$60
black-forest-labs logoFLUX.2 Pro$30

Specs

Inputs, outputs, and limits

What each model accepts, what it gives back, and how long your prompt can be.

Metricblack-forest-labs logoFLUX.2 Flexblack-forest-labs logoFLUX.2 Pro
AcceptsImage, TextImage, Text
ProducesImageImage
Max prompt lengthText plus reference images67K tokens47K tokens
Reasoning stepNoNo
Release dateNovember 25, 2025November 25, 2025

Features

Supported features

Creative controls available for each model.

Metricblack-forest-labs logoFLUX.2 Flexblack-forest-labs logoFLUX.2 Pro
Image editingAccepts reference or source imagesSupportedSupported
Text alongside imagesCan explain or caption what it madeNot supportedNot supported
Thinks before drawingPlans the image with a reasoning stepNot supportedNot supported
Reproducible seedsSame seed, same imageSupportedSupported
Temperature controlTrade consistency for varietyNot supportedNot supported

Our take

FLUX.2 Pro is 2x cheaper per image. The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is FLUX.2 Flex or FLUX.2 Pro cheaper?

FLUX.2 Pro is cheaper at about $0.03 per standard image, compared with $0.06 for FLUX.2 Flex. For 1,000 images that is $30 versus $60.

Which makes better images, FLUX.2 Flex or FLUX.2 Pro?

In blind votes on Design Arena, FLUX.2 Flex has an image generation Elo of 1200 and FLUX.2 Pro has 1195, putting FLUX.2 Flex ahead. Taste varies by style, so the best test is running your own prompts through both.

Can FLUX.2 Flex and FLUX.2 Pro edit existing images?

Yes. Both accept reference images, so you can upload a photo and ask for changes like a new background, different lighting, or added text.

Can I use FLUX.2 Flex and FLUX.2 Pro at the same time?

Yes. Shortcut Chat sends one prompt to multiple image models at once, so you can see FLUX.2 Flex and FLUX.2 Pro results side by side and keep the one you like.

black-forest-labs logoblack-forest-labs logo

Why choose? Generate with both.

Send one prompt to FLUX.2 Flex and FLUX.2 Pro at the same time. See both images side by side and keep the one you like.