Seedream 4.0 is developed by ByteDance, the parent company of TikTok, as part of their SEED AI research program.
Capabilities
One-shot accuracy
Complex edits — including detailed product or character transformations — completed in one generation, reducing iteration time.
Output consistency
Maintains character identity, product appearance, and lighting across multiple variations and batch generations for large-scale projects.
Multilingual typography
Renders text in multiple languages with improved layout placement, ideal for branding across international markets.
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How to use
- AI Image Generator
- Image Editor
Enter your prompt and references
Write your text prompt and upload up to 4 reference images for detailed guidance.
Prompting tips
- Be specific — Define subject, environment, and style in detail. Example: “A vintage car parked on a sunny street with a dog, shot in a retro photography style.”
- Use multiple references — Upload images of your subject, background, and product together for consistent outputs.
- Guide mood and style — Add descriptors like “cinematic lighting”, “flat lay”, or “ink illustration” to shape composition.
- Use 4K mode for final work — Select 4K mode for print-ready visuals or large-scale campaigns. Use 2K for drafts.
Example prompts
A red “Glaze Cherry” cosmetic bottle placed on top of two shiny fresh cherries, with a pink and white gradient background. Bold red text saying “New” is displayed on the bottle. The scene should reflect beauty product photography, glossy surfaces, and ultra-realistic lighting.
A close-up portrait of a teenage boy with curly dark hair and freckles, wearing a navy tracksuit jacket, standing in front of a yellow wall. Looking intensely into the camera with a serious expression, in a candid street photography style with natural emotion.
A Black person leans on a city overpass railing, gazing seriously at the camera. They wear a sharp white shirt with a tie and a skirt. The urban setting below features a road with passing cars, contrasting the subject’s poised and editorial stance.
Seedream 4.0 vs. Nano Banana
| Feature | Seedream 4.0 | Nano Banana (Gemini 2.5 Flash Image) |
|---|---|---|
| Developer | ByteDance | Google DeepMind |
| Multi-image references | Up to 6 | Up to 4 |
| Resolution | 2K and 4K | Up to 2K |
| Speed | Near real-time | Near real-time |
| One-shot accuracy | Yes | Yes |
| Typography | Strong, multilingual | Strong (English and Chinese) |
| Best for | Complex campaigns, branding, multilingual markets | Quick edits, fashion try-ons, product swaps |
Generating 4K images with Seedream 4.0 uses more credits than standard resolution. Use 2K mode for draft iterations before committing to 4K for final assets.