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AI image model comparison

FLUX 3 Image Klein vs Seedream 5.0 Flash

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

Seedream 5.0 Flash is an image generation and editing model from ByteDance Seed.

Per image
$0.018
Output / 1M
$4.31
Image Elo
Not available

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 $0.018, 2.2x 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

Pricing

FLUX 3 Image Klein vs Seedream 5.0 Flash price per image

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

Metricblack-forest-labs logoFLUX 3 Image Kleinbytedance-seed logoSeedream 5.0 Flash
Cost per imageEstimated, ~1 megapixel (1024×1024)$0.008$0.018
Image outputPer 1M image tokens$1.92$4.31
Tokens per imageHow many image tokens one ~1MP image uses4,1754,175
Prompt textPer 1M input tokensIncludedIncluded

What it costs in practice

Estimated totals at standard resolution.

Single image

1 image

black-forest-labs logoFLUX 3 Image Klein$0.008
bytedance-seed logoSeedream 5.0 Flash$0.018

Social media batch

50 images

black-forest-labs logoFLUX 3 Image Klein$0.40
bytedance-seed logoSeedream 5.0 Flash$0.90

Product catalog

1,000 images

black-forest-labs logoFLUX 3 Image Klein$8
bytedance-seed logoSeedream 5.0 Flash$18

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 Kleinbytedance-seed logoSeedream 5.0 Flash
AcceptsImage, TextImage, Text
ProducesImageImage
Max prompt lengthText plus reference images47K tokensNot available tokens
Reasoning stepNoNo
Release dateOctober 15, 2026October 1, 2026

Features

Supported features

Creative controls available for each model.

Metricblack-forest-labs logoFLUX 3 Image Kleinbytedance-seed logoSeedream 5.0 Flash
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 imageSupportedNot supported
Temperature controlTrade consistency for varietyNot supportedSupported

Our take

FLUX 3 Image Klein is 2.2x 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 3 Image Klein or Seedream 5.0 Flash cheaper?

FLUX 3 Image Klein is cheaper at about $0.008 per standard image, compared with $0.018 for Seedream 5.0 Flash. For 1,000 images that is $8 versus $18.

Can FLUX 3 Image Klein and Seedream 5.0 Flash 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 Seedream 5.0 Flash 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 Seedream 5.0 Flash results side by side and keep the one you like.

black-forest-labs logobytedance-seed logo

Why choose? Generate with both.

Send one prompt to FLUX 3 Image Klein and Seedream 5.0 Flash at the same time. See both images side by side and keep the one you like.

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