Environment-heavy scenes
Create interiors, cityscapes, and layered compositions with spatial fidelity.
Spatial intelligence with Seedream 4.5
Upgraded ByteDance Seedream 4.5 with stronger spatial understanding and world knowledge — multi-reference generation and editing up to 4K.
Text to imageImage editing
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What it is good for
Spatial intelligence with Seedream 4.5
Upgraded ByteDance Seedream 4.5 with stronger spatial understanding and world knowledge — multi-reference generation and editing up to 4K.
Knowledge-driven subjects
Illustrate recognizable products, places, or cultural details accurately.
High-res marketing frames
Deliver 4K visuals when campaigns need extra pixel headroom.
Key capabilities
Why creators pick Seedream 4.5
Better spatial understanding
Objects sit naturally in depth with more believable scene layout.
World knowledge
Handles real-world subjects, locales, and context with fewer hallucinations.
Up to 4K output
Choose 2K or 4K when the asset needs large, detail-rich frames.
Fourteen reference slots
Guide generation or edits with many uploads in one pass.
Batch variations
Generate up to fifteen images when exploring direction.
How to get a strong result
Tips for better results
Start with the subject, then add lighting, style, and anything that must stay the same. Upload a reference whenever you want a more controlled edit.
- 1
Describe spatial relationships
Mention foreground, background, and scale for best layout results.
- 2
Use 4K selectively
4K costs more — reserve it for finals, not every draft.
- 3
Organize many references
Label which upload controls style versus subject.
- 4
Compare with Seedream 5 tiers
Move to 5 Pro or Lite when you need the newest editing stack.
Series compare
Compare Seedream versions
From Seedream 3 text-to-image to Seedream 5 Pro flagship editing — compare ByteDance models by speed, resolution, and edit strength.
| Feature | Seedream 5 Pro Open page | Seedream 5 Lite Open page | Seedream 4.5Current You’re viewing this model | Seedream 4 Open page | Seedream 3 Open page |
|---|---|---|---|---|---|
| Best for | Flagship gen and editing | Reasoning and multi-ref | Spatial and world knowledge | Unified gen and edit | Native 2K text-to-image |
| Speed | Fast | Fast | Moderate | Moderate | Fast |
| Detail / resolution | Up to 2K (~4MP) | Up to 3K | Up to 4K | Up to 4K | Native 2K |
| Multi-image refs | Up to 10 refs | Up to 14 refs | Up to 14 refs | Up to 10 refs | Not supported |
| Text-to-image | Excellent | Strong | Strong | Strong | Strong |
| Editing | Flagship editing | Example-based editing | Strong editing | Single-sentence edits | Not supported |
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