Seedream 4.0 AI Image Generator
ByteDance's unified image creation engine. Generate stunning 4K images with exceptional text rendering, built-in editing, and multi-modal capabilities.
AI Image Generator
Cost
-- credits
Balance
0
Image Preview
Your imagination awaits
Features of Seedream 4.0
Unified Generation + Editing
Unlike traditional tools that separate generation and editing, Seedream 4.0 combines both in a single model. Create, refine, inpaint, outpaint, restyle, and upscale—all within one seamless workflow.
Native 4K Ultra HD Output
The first model in its class to support native 4K resolution (up to 4096×4096 pixels). Generate jewelry-grade detail and textures directly usable for advertising, product design, and print materials without post-processing.
Superior Chinese Text Rendering
Industry-leading Chinese text generation with over 94% character accuracy across Chinese, English, and multiple languages. Small fonts render with high fidelity, and multi-line text maintains proper semantic layout.
Multi-Image Batch Workflows
Process multiple images with a single prompt. Seedream 4.0 supports batch input/output, multi-reference generation, and maintains subject consistency across images—perfect for e-commerce and product photography.
Knowledge-Driven Generation
Create accurate educational illustrations, professional diagrams, and knowledge-based content. Seedream 4.0 understands complex concepts and generates visuals that communicate information clearly.
Professional Style Library
Access a comprehensive library of professional styles from watercolor to cyberpunk, traditional Chinese painting to photorealistic renders. Apply any style instantly to generated or existing images.
How to Use Seedream 4.0
Create stunning 4K images with text rendering in 3 steps
Enter Prompt & Upload References
Describe your vision with text prompts, optionally upload up to 10 reference images for style or subject consistency
Configure Settings
Choose resolution (1K/2K/4K), aspect ratio, and enable text rendering for Chinese or English
Generate & Download
Get your AI-generated image in about 30 seconds, download in high quality
Enter Prompt & Upload References
Describe your vision with text prompts, optionally upload up to 10 reference images for style or subject consistency
Configure Settings
Choose resolution (1K/2K/4K), aspect ratio, and enable text rendering for Chinese or English
Generate & Download
Get your AI-generated image in about 30 seconds, download in high quality
Technical Specifications
*The specifications above are collected from public sources and represent ideal conditions. Actual performance may vary depending on usage scenarios and system load.
Perfect For
Advertising & Marketing
Generate high-quality ad posters and marketing materials in seconds with perfect text integration
E-commerce & Product
Create commercial-grade product photos comparable to professional photography at scale
Chinese Content Creation
Superior Chinese text rendering makes it ideal for Chinese-language marketing and content
Batch Production
Process multiple product variants and maintain consistency across entire catalogs
Brand Design
Create logos, banners, and brand assets with accurate typography and style control
Educational Content
Generate accurate diagrams, illustrations, and infographics for learning materials
How Seedream 4.0 Compares
Native 4K (up to 4096×4096)
Usually 2K max
94%+ accuracy, industry-leading
Often poor quality
Built-in editing
Requires separate tools
Multi-image workflows
Single image only
More AI Image Models to Try
Frequently Asked Questions
Find answers to common questions about this model
Seedream 4.0 is ByteDance's new-generation unified image creation engine, released in September 2025. It integrates image generation and editing into a single architecture, delivering up to 4K resolution output. It's known for exceptional text rendering (94%+ accuracy) and multi-modal capabilities.
Seedream 4.0 supports three resolution tiers: 1K for quick previews, 2K for standard production use, and 4K for high-end commercial applications. It supports up to 4096×4096 pixels with customizable aspect ratios.
Seedream 4.0 has industry-leading text rendering with over 94% character accuracy across Chinese, English, and multiple languages. It excels at small fonts, multi-line layouts, and integrating text naturally with images—making it ideal for marketing and content creation.
Yes! Unlike many AI image generators, Seedream 4.0 includes built-in editing capabilities. You can use natural language commands to remove objects, replace elements, adjust lighting, change styles, and make localized edits while preserving the overall image style.
Yes, Seedream 4.0 supports multi-image batch workflows. You can process multiple images with a single prompt, generate variants for product catalogs, and maintain subject consistency across batches—ideal for e-commerce and production use.
Seedream 4.0 supports text-to-image generation (creating images from text descriptions), image-to-image transformation (editing existing images), and various editing operations like inpainting, outpainting, and style transfer.
Seedream 4.0 ranks #1 on the Artificial Analysis leaderboard with an ELO score of 1222, surpassing Google's Gemini 2.5 Flash. Its key advantages are 94%+ text accuracy, native 4K support, unified editing capabilities, and superior prompt adherence.
Ready to Create with Seedream 4.0?
Experience ByteDance's fastest AI image generator. 4K quality in seconds, perfect Chinese text, and built-in editing.