Seedream 4.5 is a professional-grade AI image generation and editing platform that transforms text prompts, sketches, and reference images into photorealistic visuals with accurate details, crisp typography, and cinematic 4K resolution.
What is Seedream 4.5?
Seedream 4.5 is an AI image generation model developed by ByteDance AI. It takes text prompts, reference images (up to 10 images, 10 MB each in JPG, PNG, or WebP), and aspect ratio specifications as input, and outputs high-resolution images up to 4K resolution. The platform is available as a web application and supports generation of photorealistic images with features like text rendering, subject consistency, and multilingual typography.
Key Features
- Text fidelity — Renders crisp, legible text in posters, diagrams, and product mockups with AI-driven precision.
- Real-world knowledge — Maintains accuracy of brand elements, cultural symbols, and details; can interpret handwriting and convert information into diagrams.
- Multilingual typography — Supports clear typography across English, Chinese, Japanese, Korean, Spanish, Arabic, and more; allows translation and text editing inside images while preserving lighting and spacing.
- Sketch-to-polished design — Transforms rough sketches into clean, detailed objects and refines early drafts into production-ready renders.
- Text-to-4K generation — Generates high-resolution, print-ready images directly from text prompts.
- Subject consistency — Maintains character resemblance, lighting stability, and scene continuity across multiple generations; supports multiple characters and objects.
- Multiple variants — Generates side-by-side variations from a single prompt for quick exploration of styles and compositions.
- Image upscaling — Upscales images to 1K, 2K, or 4K resolution with enhanced sharpness and no noise or blur.
Who is it for?
- Designers and illustrators — Create high-resolution visuals for print, web, and marketing materials with precise text and consistent style.
- Global brands and marketers — Produce localized, multilingual typography and maintain brand consistency across different markets.
- Content creators and businesses — Generate multiple variants of images for A/B testing, social media, and campaigns.
- Sketchers and concept artists — Turn rough sketches into polished, detailed designs quickly.
Use cases
- Generating product mockups: Add crisp text to product images for e-commerce listings.
- Creating multilingual signage: Translate and edit text in images while maintaining visual harmony.
- Upscaling legacy images: Enhance old or low-resolution images to 4K for print.
Pricing
Seedream 4.5 offers a freemium model: a Free plan with 2 images per month, Starter at $99/year (720 images), Pro at $199/year (1800 images), Studio at $399/year (3600 images), and a One-time Pass for $14.9 (80 images, no expiration). All plans include access to core AI image generation features.
FAQ
What image formats does Seedream 4.5 support?
Seedream 4.5 supports JPG, PNG, and WebP formats for upload and output.
How do credits work?
Credits are consumed per image generation. For example, generating a 2K image costs 10 credits, while a 4K image costs 20 credits. Different plans provide different monthly credit allowances.
Can I use generated images commercially?
Yes, commercial use licenses are included in paid plans (Starter, Pro, Studio, and One-time Pass). The Free plan does not include commercial use.
Is there a free trial?
Yes, the Free plan offers 2 images per month at no cost, allowing you to test the platform.
