What is Seedream 4.5
Seedream 4.5 is a breakthrough AI model from ByteDance's Volcano Engine that unifies generation and editing in a single workflow. It integrates text-to-image, inpainting, outpainting, and background replacement, ensuring perfect consistency without switching tools. Trained on billions of images, it features native English and Chinese typography support. With 2K native resolution (upgradable to 4K) and 2-5 second generation speeds, Seedream 4.5 delivers professional-grade results with unmatched speed and precision.
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Powerful Features for Professional Results
Seedream 4.5 combines generation and editing in one unified architecture, delivering consistency and precision.
Superior Subject Consistency
Maintain perfect character appearance, clothing, and object details across multiple images. Create comic series, storyboards, or product catalogs with unified visual identity.
Unified Generation & Editing
Complete text-to-image generation, inpainting, outpainting, and background replacement in one workflow. Boost creativity without switching between tools.
Native Typography Generation
Generate images with accurate English and Chinese text. Create posters, logos, or product packaging with correct typography, eliminating post-editing work.
Multi-Image Fusion & Reference
Upload up to 14 reference images simultaneously for precise style learning, composition, and character feature fusion. Perfect for complex creative requirements.
Flexible Aspect Ratios
Support any aspect ratio from 1:16 to 16:1, including standard formats like 16:9, 9:16, 4:3, 3:4, and 1:1. Create content optimized for any platform.
Lightning Fast Generation
Generate 2K images in just 2-5 seconds with Turbo mode. High-precision 4K upscaling completes in 15-40 seconds for professional-grade output.
Built for Professionals
Six powerful use cases for creators and businesses
Seedream 4.5 Showcase
Explore stunning examples showcasing text rendering, subject consistency, and multi-image fusion
How Seedream 4.5 Works
Create professional images in four simple steps
Input Your Vision
Start with a text prompt or upload reference images. Combine up to 14 images to guide the AI's creative direction.
Configure Settings
Select your preferred aspect ratio (1:16 to 16:1), resolution (2K/4K), and generation mode (standard/turbo).
Generate & Edit
Let AI create your image in seconds. Use built-in tools for inpainting, outpainting, or background replacement without leaving the platform.
Download & Use
Download your creation in JPG, PNG, or WebP format with full commercial usage rights included.
Seedream 4.5 vs 4.0
See what's new in the latest version
| Feature | Seedream 4.0 | Seedream 4.5 |
|---|---|---|
| Reference Images | Single image only | Up to 14 images |
| Text Rendering | Limited, often garbled | Native typography support |
| Architecture | Generation only | Unified generation & editing |
| Price per Image | ¥0.20 | ¥0.25 |
Frequently Asked Questions
Everything you need to know about Seedream 4.5
Start Creating with Seedream 4.5
Experience the power of unified generation and editing with industry-leading consistency and typography.