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100 lines
3.3 KiB
Markdown
100 lines
3.3 KiB
Markdown
# ByteDance SeeDream 4
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## Overview
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SeeDream 4 is ByteDance's latest generation image model featuring unified text-to-image generation and precise single-sentence editing capabilities. It offers significant improvements over SeeDream 3 with higher resolution support and more flexible workflows.
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## Model Details
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- **Provider**: ByteDance
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- **Replicate ID**: `bytedance/seedream-4`
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- **Version**: `054cd8c667f535616fd66710ce20c8949bf64ac3d9a3459e338f026424be8bec`
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## Key Features
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- **Unified Architecture**: Single model for both generation and editing
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- **Ultra High Resolution**: Up to 4K (4096x4096) output
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- **Multi-Reference Support**: Use up to 10 reference images
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- **Batch Generation**: Generate up to 15 images in one request
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- **Precise Editing**: Natural language prompt-based editing
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- **Consistent Characters**: Maintains character consistency across multiple outputs
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## Default Parameters
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- **Resolution**: 2048x2048 (2K preset)
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- **Steps**: 50 (automatic based on size preset)
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- **Guidance Scale**: 7.5 (automatic)
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- **Supports Negative Prompts**: No
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- **Supports Seed**: No
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- **Supports Image-to-Image**: Yes (via image_input array)
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## Supported Aspect Ratios
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**8 fixed ratios**:
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- **Square**: 1:1
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- **Landscape**: 4:3, 16:9, 3:2, 21:9
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- **Portrait**: 3:4, 9:16, 2:3
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Additionally supports "match_input_image" when using reference images.
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## Size Presets
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- **1K**: Best for quick previews (1024-2047px)
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- **2K**: Balanced quality and speed (2048-3071px) - Default
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- **4K**: Maximum quality (4096px)
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- **Custom**: Specify exact width/height (1024-4096px range)
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## Best Use Cases
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- Character consistency across multiple scenes
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- High-resolution commercial imagery
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- Image editing with natural language prompts
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- Multi-view generation from single prompt
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- Reference-based generation
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- Batch creation of variations
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## Example Prompts
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1. "A professional portrait of a woman in business attire, modern office background, natural lighting"
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2. "A selection of photos of this character [reference] exploring a bookshop called 'SeeDream 4'"
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3. "Multiple views of a futuristic car design, different angles and lighting"
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## Tips for Best Results
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- Use the 2K preset for optimal balance of quality and speed
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- Leverage multi-reference input for character consistency
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- Use natural language for precise editing instructions
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- Request multiple outputs for variations in one go
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- Specify detailed scene descriptions for better results
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- For ultra-high quality, use 4K preset
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## Strengths
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- Exceptional high-resolution output (up to 4K)
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- Unified generation and editing workflow
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- Excellent character consistency
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- Multi-reference and batch capabilities
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- Fast inference compared to quality level
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- Natural language editing
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## Limitations
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- No manual seed control
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- No negative prompt support
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- Fixed aspect ratios only (no completely custom ratios)
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- Slightly higher cost than SeeDream 3 ($0.03 vs $0.025)
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## Cost
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$0.03 per generation (regardless of resolution)
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## Migration from SeeDream 3
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If you're upgrading from SeeDream 3:
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- Resolution limits increased: 2048x2048 → 4096x4096
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- New parameter structure (size presets instead of raw dimensions)
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- Removed: seed support, negative prompts
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- Added: image_input array, multi-image generation, higher resolutions
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- Slightly higher cost but significantly more features
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