What is Seedream?

Seedream is ByteDance's flagship text-to-image model family (Seedream 3.0/4.0/4.5) that pairs near-instant ~1.8-second generation with native 4K output, strong bilingual (Chinese/English) text rendering and exceptional character consistency across batches. Developed by ByteDance and launched in 2025, it is listed as a freemium AI Image Generation solution.

Seedream icon

Seedream

Freemium
ByteDance
Updated:

Seedream is ByteDance's flagship text-to-image model family (Seedream 3.0/4.0/4.5) that pairs near-instant ~1.8-second generation with native 4K output, strong bilingual (Chinese/English) text rendering and exceptional character consistency across batches.

AI Image Generation
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Free trial available

Key Highlights

Top-of-Arena Model

Seedream releases have repeatedly hit #1 on the Artificial Analysis image arenas.

Speed and 4K Together

Generates up to native 4K in about 1.8 seconds per image — rare at this price.

Consistency Across a Set

Up to 9 consistent images per batch and 6 reference images keep character/brand stable.

About

Seedream is the text-to-image line from ByteDance's Seed research lab, and it is built for speed, resolution and consistency rather than a single signature art style. The model draws on ByteDance's enormous internal training data to deliver photorealistic and illustrative output in roughly 1.8 seconds per image, with native generation up to 4K — a combination that few competitors match at the same price point. Where Seedream really separates itself is production consistency: it can generate up to nine coherent images in a single batch and accept up to six reference images, so a character, product or brand style stays recognizable across an entire set of shots. That makes it a natural fit for storyboards, ad variations, e-commerce catalogs, character sheets and any workflow where you need many on-brand images rather than one hero render. Seedream 4.0 folded generation and editing into one unified model, adding natural-language edits such as background replacement, object add/remove, relighting, color and style transforms, plus targeted retouching — so you can iterate on an existing image without switching tools. Bilingual text rendering is a standout: it places legible Chinese and English type inside images far more reliably than most diffusion models, which matters for posters, packaging and social graphics. Access spans a friendly web app, ByteDance's Dreamina/Jimeng products and a low-cost API (about $0.03 per image on gateways such as Vercel and fal), making high-volume automation genuinely affordable. The trade-offs: it is less of an 'artistic voice' than Midjourney, the ecosystem of community tutorials and third-party tooling is younger, and heavy realism controls still trail dedicated pro pipelines.

Use Cases

1

E-commerce Catalog & Ad Variations

Produce many on-brand, consistent shots of the same product or model.

2

Storyboards & Character Sheets

Build storyboards keeping a character consistent scene to scene via references.

3

Text Posters & Packaging

Generate posters and packaging with legible in-image Chinese/English type.

Pros & Cons

Pros

Very fast generation (~1.8s per image)
Native 4K output and strong resolution
Excellent character/brand consistency across a set
Very cheap API (~$0.03/image)
Strong bilingual in-image text rendering

Cons

Less of a signature artistic voice than Midjourney
Younger community, tutorial and third-party tool ecosystem
Advanced realism controls trail dedicated pro pipelines

Features

  • Ultra-fast ~1.8s generation
  • Native up to 4K output
  • Up to 9 consistent images per batch
  • Up to 6 reference images for consistency
  • Unified generation + editing (Seedream 4.0)
  • Strong bilingual (Chinese/English) text rendering
  • Natural-language editing (background, objects, relight, style)
  • Low-cost API (~$0.03/image)

Benchmark Results

Generation speed~1.8 seconds per image

Source: ByteDance Seed / VidPros (2026)

Max resolutionNative up to 4K output

Source: ByteDance Seed (Official) / GenImg (2026)

Batch consistencyUp to 9 consistent images from up to 6 reference images

Source: VidPros / Seedream 4.0 docs (2026)

API price~$0.03 per image (Seedream 4.0)

Source: Vercel AI Gateway / OpenRouter (2026)

Pricing

Web (Dreamina/Jimeng) Free

Free with daily credits

  • Daily-refreshing generation credits
  • Text-to-image and image editing
  • Up to 4K export on higher tiers
Subscription

From ~$10/mo

  • Higher monthly credit allotment
  • Faster priority generation
  • Commercial usage rights
API

~$0.03 per image

  • Programmatic access via Vercel AI Gateway / fal / OpenRouter
  • Pay-per-image, high-volume friendly
  • Batch and reference-image generation

Frequently Asked Questions

Quick Info

Pricing
Freemium
CompanyByteDance
Launch Year2025
Free TrialYes
Last Updated

Integrations

Seedream API (Vercel AI Gateway)
fal.ai model hosting
OpenRouter API access
ByteDance Dreamina / Jimeng web apps

Target Audience

E-commerce and marketing teams
Social media and content creators
Developers building image features
Brand and design studios

Tags

karakter-tutarliligi
ai-gorsel-uretimi
4k-gorsel
metin-gorsel
midjourney-alternatifi
flux-alternatifi
api-gorsel-uretimi
seedream
bytedance
toplu-uretim
referans-gorsel
metin-render

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