Seedream 4.5 is the version of ByteDance’s image generation and editing tool which dropped December 4, 2025.
It works with both text and images. You can start from a written prompt or tweak an image you already have.
This update builds upon its predecessor and pushes quality, control, and lifelike results. Pictures come out sharper, colors and lighting feel real, and the tool listens better when you tell it what to do. That means it can make faces stay the same even when you switch clothes or backgrounds. Your character still looks like themselves.
What it can do.
Keeps your character consistent. If you give it a reference image, it'll hold on to key things like face shape, skin tone, and lighting, even while you mess with clothing or the scene around them.
Easy outfit swaps and edits. You can ask it to change outfits, drop in a new background, or mess with lighting and textures. You’ve got full control.
Big clean images. It supports 2K and 4K resolution, so you can use it for stuff like posters or marketing images.
Understands your prompts. It follows instructions well, whether you're doing a small tweak like posture or a full background swap.
Use more than one reference. You can load in a few images with different looks, poses, or lighting, and it’ll keep the character steady across all of them. Good for things like lookbooks or design sheets.
Works across styles. You can make realistic photos, artsy stuff, product images, or posters. It handles all of it.
If you'd like to access this model, you can explore the following possibilities:
