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Seedream 4.0 AI Image Generator
Create & edit photoreal images fast — native 2K, supports up to 4K 🚀
What Makes Seedream 4.0 Different
A unified engine for high-quality creation, fast iteration, and consistent branding
Deep Scene Understanding
Render complex, multi-subject scenes with accurate relationships, lighting, and composition—great for product sets, portraits, and events.

2K Native, Up to 4K
Generate crisp 2K images fast, with support for ultra-high-definition 4K when you need extra detail and print-ready assets.

Commercial-Grade Design
Produce campaign-ready posters, ads, key visuals, and social content with reliable layout control and high aesthetic fidelity.

Accurate Text & Layout
Render titles, captions, and small fonts with improved readability and placement—ideal for infographics and marketing graphics.

Reference-Based Consistency
Upload up to 6 reference images to keep characters, products, or branding consistent across shots and styles.

Unified Create & Edit
Generate and then refine with plain-English edits—add, remove, restyle, or replace elements without manual masks or layers.

How Seedream 4.0 Works
From idea to polished visuals in four simple steps
Add References (Optional)
Upload up to 6 images to lock in character, product, or brand consistency—or start with a prompt only.
Write Your Prompt
Describe the scene, style, and any on-image text. Include mood, lighting, and camera cues for best results.
Generate & Refine
Preview fast 2K results, then iterate with natural-language edits to dial in details without redoing the whole image.
Export at 2K–4K
Download high-definition images ready for social, ads, decks, or print workflows.
What Creators Say on X
See real-world prompts, side-by-sides, and tips for Seedream 4.0
Seedream 4.0 FAQs
Still have questions? Email us and we’ll get back to you ASAP.
What is Seedream 4.0?
Seedream 4.0 is ByteDance’s unified model for both image generation and image editing. It understands complex prompts, maintains reference consistency, and delivers high-definition results—native 2K with support for up to 4K.
How fast is it?
Creators report very fast 2K rendering, with platforms noting sub-2-second performance in some setups. Actual speed depends on your settings and provider.
Can I use multiple reference images?
Yes. You can upload up to 6 references to keep characters, products, or brand assets consistent across multiple shots or styles.
Does it support sequential or batch creation?
Yes. You can generate a coherent batch (commonly 3–9 images) for storyboards, ads, carousels, or product variations while preserving style and subject identity.
What resolutions are supported?
Seedream 4.0 generates native 2K images and supports ultra-high-definition up to 4K for print-ready detail.
Where can I access Seedream 4.0 or an API?
You can create right on our Generator page. Developers can also use third-party providers like Replicate or FAL for API access.
Is it suitable for commercial work?
Absolutely. Many teams use Seedream 4.0 for campaign visuals, product imagery, and social content. Check your plan’s license terms before publishing.
Try Seedream 4.0 Free
Generate and edit photoreal images with fast, consistent results—great for campaigns, content, and creative exploration.
