AI image model comparison

FLUX 3 Image Klein vs Nano Banana

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

FLUX 3 Image Klein is an open-weights image generation and editing model from Black Forest Labs.

Per image
$0.008
Output / 1M
$1.92
Image Elo
Not available

Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding.

Per image
$0.039
Output / 1M
$30
Image Elo
1186

Comparing chat or coding models? Compare text models

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 3 Image Klein

$0.008 vs $0.039, 4.8x cheaper

Better image quality

Not available

Not enough arena data

Better at editing

Not available

Not enough arena data

Newer release

black-forest-labs logo

FLUX 3 Image Klein

Released October 15, 2026

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 3 Image KleinNot available
google logoNano Banana#10 · 55.6% wins1186

Image editing

black-forest-labs logoFLUX 3 Image KleinNot available
google logoNano BananaNot available

Graphic design

black-forest-labs logoFLUX 3 Image KleinNot available
google logoNano Banana#10 · 56.9% wins1168

Logos

black-forest-labs logoFLUX 3 Image KleinNot available
google logoNano Banana#11 · 51.4% wins1169

Pricing

FLUX 3 Image Klein vs Nano Banana price per image

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

Metricblack-forest-labs logoFLUX 3 Image Kleingoogle logoNano Banana
Cost per imageEstimated, ~1 megapixel (1024×1024)$0.008$0.039
Image outputPer 1M image tokens$1.92$30
Tokens per imageHow many image tokens one ~1MP image uses4,1751,290
Prompt textPer 1M input tokensIncluded$0.30
Reference imagesPer 1M input image tokensIncluded$0.30

What it costs in practice

Estimated totals at standard resolution.

Single image

1 image

black-forest-labs logoFLUX 3 Image Klein$0.008
google logoNano Banana$0.039

Social media batch

50 images

black-forest-labs logoFLUX 3 Image Klein$0.40
google logoNano Banana$1.93

Product catalog

1,000 images

black-forest-labs logoFLUX 3 Image Klein$8
google logoNano Banana$38.70

Specs

Inputs, outputs, and limits

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

Metricblack-forest-labs logoFLUX 3 Image Kleingoogle logoNano Banana
AcceptsImage, TextImage, Text
ProducesImageImage, Text
Max prompt lengthText plus reference images47K tokens33K tokens
Reasoning stepNoNo
Release dateOctober 15, 2026October 7, 2025

Features

Supported features

Creative controls available for each model.

Metricblack-forest-labs logoFLUX 3 Image Kleingoogle logoNano Banana
Image editingAccepts reference or source imagesSupportedSupported
Text alongside imagesCan explain or caption what it madeNot supportedSupported
Thinks before drawingPlans the image with a reasoning stepNot supportedNot supported
Reproducible seedsSame seed, same imageSupportedSupported
Temperature controlTrade consistency for varietyNot supportedSupported

Our take

FLUX 3 Image Klein is 4.8x 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 3 Image Klein or Nano Banana cheaper?

FLUX 3 Image Klein is cheaper at about $0.008 per standard image, compared with $0.039 for Nano Banana. For 1,000 images that is $8 versus $38.70.

Can FLUX 3 Image Klein and Nano Banana 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 3 Image Klein and Nano Banana at the same time?

Yes. Shortcut Chat sends one prompt to multiple image models at once, so you can see FLUX 3 Image Klein and Nano Banana results side by side and keep the one you like.

black-forest-labs logogoogle logo

Why choose? Generate with both.

Send one prompt to FLUX 3 Image Klein and Nano Banana at the same time. See both images side by side and keep the one you like.