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Seedream
Seedream is ByteDance's text-to-image generation model, capable of producing high-quality images with strong text rendering, bilingual support (English and Chinese), and native high-resolution output.
Model Variants
Seedream 3.0
- Native 2K resolution output without post-processing
- Bilingual image generation (English and Chinese)
- 3-second end-to-end generation for 1K images
- Improved text rendering for small fonts and long text layouts
Seedream 4.0
- Unified architecture for text-to-image and image editing
- Native output up to 4K resolution
- Multi-image reference input (up to 6 source images)
- 1.8-second inference for 2K images
- Batch input and output for multiple generations
- Natural language image editing capabilities
Key Features
- Accurate text rendering in both English and Chinese
- Knowledge-driven generation for educational illustrations and charts
- Strong character consistency across multiple angles
- Prompt-based image editing without separate tools
- Versatile style support from photorealism to anime
- Leading scores on Artificial Analysis Image Arena
Hardware Requirements
- API-only access via ByteDance Volcano Engine
- No local hardware requirements for end users
- Third-party API providers available (e.g., EvoLink)
Common Use Cases
- Poster and advertisement design with embedded text
- E-commerce product photography
- Character design with multi-angle consistency
- Educational illustration and infographic generation
- Brand-consistent marketing materials
Key Parameters
- prompt: Text description of the desired image
- resolution: Output resolution (up to 4K supported)
- aspect_ratio: Supports 16:9, 4:3, 1:1, and custom ratios