Seedream 4.0
Seedream 4.0 is Bytedance’s refined image model for 4K generation, precise editing, and consistent multi-image output.
Input
Prompt
Upload up to 10 images (Optional)
upload
Resolution
Aspect Ratio
- 9:16
- 16:9
- 1:1
- 4:3
- 3:4
- 3:2
- 2:3
- 21:9
Quantity
- 1
- 2
- 3
- 4
Result
View History| Model & Modality | Credits / Gen | Our Price (USD) | Official Price (USD) | DISCOUNT |
|---|---|---|---|---|
seedream 4.0 imageByteDance | 5 per image | $0.0223 | $0.03 | - 26% |
Seedream 4.0 API
Seedream 4.0 is a next-generation multimodal AI image generator that delivers ultra-fast 4K output and precise editing, enabling high-quality visuals while maintaining consistent style.
Prompt:
A vibrant green cocktail garnished with cucumber and dill, set against a lush garden backdrop, perfect for a refreshing summer vibe.
Everything you need to build
AI-powered applications
Our API provides comprehensive access to cutting-edge AI tools, enabling you to build sophisticated applications with ease.
Lightning-Fast 2K Rendering
Built on an advanced Mixture of Experts (MoE) architecture, Seedream 4.0 generates sharp 2K images in as little as 1.8 seconds, dramatically accelerating creative workflows.
Unified All-in-One Creative Platform
Seedream 4.0 seamlessly integrates text-to-image generation and advanced image editing within a single model, ensuring a smoother and more consistent end-to-end workflow.
Multi-Reference Precision Editing
Supporting up to six reference images and generating up to nine coordinated outputs per run, Seedream 4.0 enables high-accuracy editing and strong cross-image consistency.
Intelligent Natural Language Control
Seedream 4.0 accurately interprets complex prompts, allowing users to add, remove, or modify visual elements through simple text instructions.
4K Ultra-HD Professional Output
With support for up to 4K resolution, Seedream 4.0 delivers high-definition, studio-quality visuals suitable for commercial and brand-level applications.
Scalable Batch Creation & Style Consistency
Its batch generation system produces multiple harmonized images simultaneously while maintaining character consistency and stylistic coherence across projects.
Seedream 4.0: AI Image Generation and Editing Tool
Seedream 4.0 is powered by advanced multimodal AI technology, enabling ultra-fast 2K image generation, precise text-to-image creation, and professional-grade visual editing. With strong natural language understanding and consistent character rendering, it integrates image generation and editing into one powerful tool, making creative work faster and easier.
Ultra-Fast High-Definition Image Creation
Built for modern production demands, Seedream 4.0 delivers high-resolution outputs up to 4K with dramatically optimized inference speed—generating 2K images in as little as 1.8 seconds. Powered by advanced MoE architecture, it enables rapid iteration, large-scale campaign production, and real-time creative experimentation without compromising detail or clarity.
Unified Generation & Editing Architecture
Seedream 4.0 integrates text-to-image generation, high-precision image editing, and enhancement capabilities into a single multimodal model. From creating brand-new scenes to applying detailed in-image adjustments, every step is powered by the same architecture—ensuring consistent visual quality, smoother workflows, and no tool-switching friction. This unified engine keeps creative control centralized while accelerating production from concept to final output.
Intelligent Multi-Reference & Batch Consistency
Seedream 4.0 excels at maintaining visual identity across projects. It supports up to 6 reference images for precise control and can generate up to 9 coordinated outputs simultaneously. Whether producing e-commerce catalogs, branded visuals, or character-driven storytelling, the model ensures style alignment, color consistency, and intelligent variation control across every image set.
Seedream API – Core Technical Differences Between Versions
Seedream 4.0 is ByteDance’s multimodal AI image model designed to enhance professional and creative visual workflows, and the comparison below outlines the core technical differences between Seedream 4.0, Seedream 4.5, and Seedream 5.0-lite.
| Feature / Model | Seedream 4.0 | Seedream 4.5 | Seedream 5.0-lite |
|---|---|---|---|
Release Date | September 2025 | December 2025 | February 2026 |
Model Positioning | Native 4K ultra-HD output, strong subject consistency, supports multi-reference inputs and grouped image generation | Stable multi-image fusion, enhanced editing consistency, clearer small text, 4K ultra-HD output | More intelligent and controllable creation, real-time retrieval, stronger consistency preservation |
Resolution | 4K | 4K | 4K |
Detail Rendering | Basic | Moderate | High fidelity |
Typography & Text | Basic | Simple text clarity | Design-level long-text stability |
Multi-Image Consistency | Unstable | Limited | Reinforced consistency |
Composition Capability | Random | Basic | Professional-level |
Prompt Understanding | Basic | Standard | Precise parsing of complex instructions |
Typical Use Cases | Concept exploration | Fast generation | Commercial design / advertising |
Frequently Asked Questions
What is Seedream 4.0?
Seedream 4.0 is a multimodal AI image generation and editing model developed by ByteDance that integrates text-to-image creation, intelligent image editing, and high-resolution rendering into a single platform, and leverages an advanced Mixture of Experts (MoE) architecture to generate 4K high-resolution images in approximately 1.8 seconds.How is Seedream 4.0 different from other AI image tools?
Compared to traditional AI image tools, Seedream 4.0 consolidates text-to-image generation, advanced image editing, multi-reference processing, and batch creation within a single model, delivering superior consistency, faster generation speed, and professional-grade output quality.Is Seedream 4.0 suitable for professional projects?
Yes, Seedream 4.0 is designed for both individual creators and professional teams, supporting high-end creative workflows such as commercial photography, marketing campaigns, product design, and brand visual production while significantly improving efficiency.What types of image editing does Seedream 4.0 support?
Seedream 4.0 supports natural language-driven editing, allowing users to transform characters, adjust styles, modify scenes, and generate multiple variations through text instructions while maintaining high consistency and accuracy in complex visual tasks.How fast is Seedream 4.0?
Thanks to its optimized Mixture of Experts (MoE) architecture, Seedream 4.0 can generate 2K resolution images in approximately 1.8 seconds, enabling rapid iteration and efficient creative workflows.Can Seedream 4.0 maintain high image quality?
Seedream 4.0 is specifically optimized for high-resolution rendering and scene detail preservation, ensuring natural visuals, smooth editing transitions, and consistent, professional-quality results.Can Seedream 4.0 handle multiple references or characters?
Yes, Seedream 4.0 supports up to six reference images for precise editing and can generate up to nine images simultaneously, making it ideal for projects requiring character consistency or large-scale visual production.Can Seedream 4.0 be used for free?
Yes, new users receive complimentary credits to experience Seedream 4.0’s image generation and editing capabilities.Can the generated content be used for commercial purposes?
Yes, content generated with Seedream 4.0 can be used for commercial purposes, including client projects, marketing campaigns, product showcases, and brand visual communications.
