AI image model comparison

Seedream 5.0 Pro vs FLUX.2 Flex

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

bytedance-seed logo

ByteDance Seed

Seedream 5.0 Pro

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

Per image
$0.045
Output / 1M
$10.78
Image Elo
Not available
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

At a glance

Quick verdict

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

Cheaper per image

bytedance-seed logo

Seedream 5.0 Pro

$0.045 vs $0.06, 1.3x cheaper

Better image quality

Not available

Not enough arena data

Better at editing

Not available

Not enough arena data

Newer release

bytedance-seed logo

Seedream 5.0 Pro

Released August 12, 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

bytedance-seed logoSeedream 5.0 ProNot available
black-forest-labs logoFLUX.2 Flex#7 · 55.4% wins1200

Image editing

bytedance-seed logoSeedream 5.0 ProNot available
black-forest-labs logoFLUX.2 FlexNot available

Graphic design

bytedance-seed logoSeedream 5.0 ProNot available
black-forest-labs logoFLUX.2 Flex#7 · 54.6% wins1189

Logos

bytedance-seed logoSeedream 5.0 ProNot available
black-forest-labs logoFLUX.2 Flex#7 · 54% wins1208

Pricing

Seedream 5.0 Pro vs FLUX.2 Flex price per image

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

Metricbytedance-seed logoSeedream 5.0 Problack-forest-labs logoFLUX.2 Flex
Cost per imageEstimated, ~1 megapixel (1024×1024)$0.045$0.06
Image outputPer 1M image tokens$10.78$14.65
Tokens per imageHow many image tokens one ~1MP image uses4,1754,096
Prompt textPer 1M input tokensIncludedIncluded
Reference imagesPer 1M input image tokens$3000Included

What it costs in practice

Estimated totals at standard resolution.

Single image

1 image

bytedance-seed logoSeedream 5.0 Pro$0.045
black-forest-labs logoFLUX.2 Flex$0.06

Social media batch

50 images

bytedance-seed logoSeedream 5.0 Pro$2.25
black-forest-labs logoFLUX.2 Flex$3

Product catalog

1,000 images

bytedance-seed logoSeedream 5.0 Pro$45
black-forest-labs logoFLUX.2 Flex$60

Specs

Inputs, outputs, and limits

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

Metricbytedance-seed logoSeedream 5.0 Problack-forest-labs logoFLUX.2 Flex
AcceptsImage, TextImage, Text
ProducesImageImage
Max prompt lengthText plus reference imagesNot available tokens67K tokens
Reasoning stepNoNo
Release dateAugust 12, 2026November 25, 2025

Features

Supported features

Creative controls available for each model.

Metricbytedance-seed logoSeedream 5.0 Problack-forest-labs logoFLUX.2 Flex
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 imageNot supportedSupported
Temperature controlTrade consistency for varietySupportedNot supported

Our take

Seedream 5.0 Pro is 1.3x 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 Seedream 5.0 Pro or FLUX.2 Flex cheaper?

Seedream 5.0 Pro is cheaper at about $0.045 per standard image, compared with $0.06 for FLUX.2 Flex. For 1,000 images that is $45 versus $60.

Can Seedream 5.0 Pro and FLUX.2 Flex 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 Seedream 5.0 Pro and FLUX.2 Flex at the same time?

Yes. Shortcut Chat sends one prompt to multiple image models at once, so you can see Seedream 5.0 Pro and FLUX.2 Flex results side by side and keep the one you like.

bytedance-seed logoblack-forest-labs logo

Why choose? Generate with both.

Send one prompt to Seedream 5.0 Pro and FLUX.2 Flex at the same time. See both images side by side and keep the one you like.