Seedream 4.0

Seedream 4.0

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Seedream 4.0 is ByteDance's next-generation AI model that unifies image generation and editing capabilities in a single architecture, delivering high-resolution 2K images in just 1.8 seconds with superior prompt adherence and consistency.
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Seedream 4.0

Product Information

Updated:Sep 12, 2025

What is Seedream 4.0

Seedream 4.0 is a state-of-the-art multimodal AI model developed by ByteDance's Seed team, launched in 2025. It represents a significant advancement in AI image creation technology by integrating both image generation and editing functionalities into one unified system. The model is designed to handle complex multimodal tasks including knowledge-based generation, complex reasoning, and reference consistency while producing high-quality images at up to 4K resolution.

Key Features of Seedream 4.0

Seedream 4.0 is ByteDance's next-generation AI image model that integrates image generation and editing capabilities into a unified architecture. It features ultra-fast processing with 2K image generation in 1.8 seconds, supports up to 4K resolution output, and offers comprehensive editing tools. The model excels at maintaining character consistency, handles complex multimodal tasks including knowledge-based generation, and can produce multiple coordinated images simultaneously with batch processing capabilities.
Ultra-Fast Processing: Generates 2K resolution images in just 1.8 seconds using advanced Mixture of Experts (MoE) architecture, making it 10 times faster than its predecessor
Unified Generation and Editing: Combines text-to-image synthesis, reference-based editing, and batch image creation in a single system with comprehensive editing tools including background replacement, object removal, style transformation, and color adjustment
Multi-Image Consistency: First AI model capable of generating up to 9 matching images simultaneously while maintaining perfect visual consistency across all outputs
Knowledge-Driven Generation: Capable of creating accurate educational illustrations, charts, and professional images powered by rich knowledge and reasoning capabilities

Use Cases of Seedream 4.0

Professional Design & Marketing: Create consistent visual content for marketing campaigns, product variations, and brand materials with batch generation capabilities
Educational Content Creation: Generate educational charts, timelines, diagrams, and tutorials with accurate information and clear visual presentation
Photo Editing & Restoration: Perform complex image editing tasks including colorization, repair, style transformation, and background replacement while maintaining image integrity
Website & UI Design: Create professional website layouts and UI elements with specific style requirements and consistent visual language

Pros

Exceptional speed with 1.8-second generation time
High-quality output up to 4K resolution
Strong character and reference consistency
Comprehensive editing capabilities in a unified system

Cons

Limited availability - currently only in beta testing phase
Requires clear, structured prompts for optimal results

How to Use Seedream 4.0

1. Access Seedream 4.0: Navigate to ByteDance's official Seedream platform at seed.bytedance.com/en/seedream4_0
2. Choose Creation Mode: Select between text-to-image generation or image editing mode depending on your needs
3. Input Your Prompt: Enter a clear, detailed text description of the image you want to create or the edits you want to make
4. Upload Reference Images (Optional): For editing or reference-based generation, upload up to 5 images by dragging and dropping files, pasting from clipboard (Ctrl/Cmd+V), or providing URLs
5. Select Output Settings: Choose your desired output resolution (up to 4K) and number of outputs (up to 9 matching images simultaneously)
6. Generate Images: Click generate and wait approximately 1.8 seconds for your 2K resolution images to be created
7. Refine Results (Optional): Use the editing features to make additional adjustments like background replacement, object removal, style transformation, or color adjustment
8. Download Results: Save your generated or edited images in your chosen resolution format

Seedream 4.0 FAQs

Seedream 4.0 is a next-generation image creation model developed by ByteDance Seed that unifies image generation and editing capabilities in a single architecture. It can handle complex multimodal tasks including knowledge-based generation, reasoning, and reference consistency while producing high-quality images up to 4K resolution.