UlazAI - AI Image & Video Tools
Seedream 4.5 AI Image Generator
4K Ultra-High Resolution image generation with AI-powered editing capabilities. The next evolution of ByteDance's Seedream technology.
Seedream 4.5 is the page to use when you want 4K text-to-image, image editing, quality modes, aspect-ratio control, and pricing for the Seedream 4.5 model. If you are looking for Seedream image-to-video instead, use the separate Seedream image-to-video workflow.
Why Choose Seedream 4.5?
The most advanced image generation model from ByteDance, now available on UlazAI.
4K Ultra Resolution
Generate images up to 4K resolution with incredible detail and clarity. Perfect for professional use cases and large-format printing.
AI Image Editing
Edit existing images with natural language prompts. Change backgrounds, add elements, modify styles - all through simple text instructions.
Fast Processing
Optimized for speed with asynchronous processing. Get your high-quality images in seconds, not minutes.
Multiple Aspect Ratios
Support for various aspect ratios including 1:1, 4:3, 3:4, 16:9, and 9:16 - perfect for any use case from social media to print.
Quality Modes
Choose from Standard, HD, or 4K quality modes based on your needs. Balance between speed and resolution.
Seamless Workflow
Integrated with Seedream 3.0 in one unified studio. Switch between models and modes effortlessly.
Seedream 3.0 vs 4.5
Choose the right model for your needs
Seedream 3.0
- β Fast image generation
- β Multiple sizes
- β Reliable text rendering
- β 8 credits per image
- - Standard resolution
Best for: Quick iterations and general use
Seedream 4.5
NEW- β Up to 4K resolution
- β AI image editing
- β Quality modes (Standard/HD/4K)
- β 8 credits per image
- β Professional workflows
Best for: Professional projects and high-quality output
What is new in Seedream 4.5
Seedream 4.5 is ByteDance's image model that pairs text-to-image generation with reference-guided image editing. The practical jump over 4.0 and 3.0 is resolution and editing: you get up to 4K output, stronger prompt adherence on long descriptions, and the ability to edit an existing image (change a background, swap an object, restyle) instead of only generating from scratch.
- β Text-to-image and image-to-image in one model
- β Up to 4K resolution with selectable quality modes
- β Reliable in-image text rendering for posters and UI mockups
- β Multiple aspect ratios for social, print and web
Seedream 4.5 β Veo 3 in one workspace
Most "Seedream 4.5 free" pages are single-model tools. On UlazAI, Seedream 4.5 sits next to the video models, so you can generate a 4K still and then animate that exact image with Veo 3.1, Kling or Runway from the same credit wallet β no re-uploading between apps.
- Generate or edit your image with Seedream 4.5
- Send it straight into Video Studio as an image-to-video start frame
- Pick a video model and keep the same characters and composition
Compare the image and video models on the 2026 AI model guide.
Simple, Transparent Pricing
No subscriptions, no hidden fees. Pay only for what you use.
- β Up to 4K resolution
- β Text-to-image generation
- β AI image editing
- β All aspect ratios
1000 credits = β¬10
Buy Creditsβ Frequently Asked Questions
What is Seedream 4.5?
Seedream 4.5 is ByteDance's refined image model designed for 4K generation, precise editing, and consistent multi-image output. It represents the next evolution in AI image generation with professional-grade quality.
What quality modes are available?
Seedream 4.5 offers two quality modes: Basic (outputs 2K images) and High (outputs 4K images). Choose based on your needs - 2K for faster generation, 4K for maximum detail and professional use.
What is AI Image Editing?
Seedream 4.5 includes a powerful editing feature. Upload an existing image (JPEG, PNG, or WebP up to 10MB) and describe what changes you want. The AI will modify the image based on your text prompt.
What aspect ratios are supported?
Seedream 4.5 supports multiple aspect ratios to fit any use case: 1:1 (square), 4:3 (standard), 3:4 (portrait), 16:9 (widescreen), and 9:16 (vertical/stories). The ratio determines the visual form of your output.
What file formats can I upload for editing?
For image editing, you can upload JPEG, PNG, or WebP files. Maximum file size is 10MB. You can upload up to 14 images for batch processing or multi-image workflows.
How does Seedream 4.5 compare to Seedream 3.0?
Seedream 4.5 offers higher resolution output (up to 4K vs standard), AI-powered image editing capabilities, and improved consistency for multi-image generation. Both models cost 8 credits per image.
How much does it cost?
Each Seedream 4.5 generation costs 8 credits, same as Seedream 3.0. With 1000 credits = β¬10, that's just β¬0.08 per 4K image - exceptional value for professional-quality AI images.
Ready to Create Amazing Images?
Experience the power of Seedream 4.5's 4K image generation and AI editing.
Seedream routes on UlazAI
Use this page for Seedream 4.5 image generation and editing. Use the related pages below only when the intent is different.