Seedream 4.0
by ByteDance
Unified 12-billion parameter AI image model integrating generation and editing capabilities, creating 4K images in 1.8 seconds with advanced text rendering and multi-image fusion
See https://seed.bytedance.com/en/seedream4_0
Features
Unified Architecture:
- Integrates image generation and editing into single unified model
- Handles complex multimodal tasks: knowledge-based generation, complex reasoning, reference consistency
- 12-billion parameter architecture with Mixture of Experts design
- Eliminates workflow fragmentation between separate generation/editing tools
Image Generation:
- Generates up to 4K resolution (2048×2048 pixel standard, 4K support for print)
- Creates images in as little as 1.8 seconds
- Batch generation: up to 9 outputs simultaneously
- Supports mixing text prompts with up to 6 reference images
Advanced Editing:
- Prompt-based image editing with natural language requests
- Multi-image fusion combining colors, styles, and details from multiple sources
- Object removal and replacement
- Photo colorization and restoration
- Preserves key features while modifying composition, color, or specific elements
Text Rendering:
- Superior text rendering for legible signs, posters, and labels
- High scores in text-to-image tasks for prompt following and aesthetics
- Beats many competitors in text rendering quality
Multi-Modal Capabilities:
- Style transformation across numerous artistic formats
- Knowledge-driven image generation with complex reasoning
- Scene understanding and context awareness
- Reference image consistency across multiple outputs
Superpowers
Seedream 4.0 stands out with its unified generation-editing architecture that eliminates the need for separate tools, making it ideal for:
- Professional designers creating branding, packaging, and fashion mockups with consistent visual identity
- Marketers and advertisers producing high-quality advertisement series and product shots at scale
- Content creators generating social media visuals, thumbnails, and marketing materials
- Educators creating scientific diagrams, historical timelines, and instructional materials
- UI/UX designers prototyping website designs and interface elements
Real-world applications:
- Commercial design with 4K resolution for print-ready materials
- Batch generation for testing creative variations quickly
- Multi-image fusion for brand consistency across assets
- Text-heavy visuals like infographics, posters, and signage
- Photo restoration and colorization for archival projects
Key advantages:
- Significantly faster than competitors (1.8 seconds for generation)
- First place in internal Elo evaluation for prompt adherence and alignment
- Free tier available with commercial use rights
- Handles both creation and modification in one workflow
- Excels at interpreting natural language editing instructions
Pricing
- Free tier: Core image generation and editing features with full download access
- BytePlus API: Starting at $0.03 per image
- Free trial: 200 images for new BytePlus users
- Commercial use: Supported across all tiers for advertisements, branding, social media, and marketing
Cost efficiency: Batch generation and fast inference reduce time and cost for high-volume visual production.
Use Cases
Commercial Design:
- Brand identity and packaging design
- Fashion mockups and product visualization
- Print-ready materials at 4K resolution
Marketing & Advertising:
- Social media content at scale
- Advertisement series with consistent styling
- Product photography alternatives
Educational Content:
- Scientific diagrams and illustrations
- Historical recreations and timelines
- Instructional materials and infographics
Professional Workflows:
- Website and UI/UX prototypes
- Presentation visuals and slides
- Documentation and technical illustrations