Seedream 4.0 from ByteDance tries to simplify how you create and edit images. Now, instead of switching between tools, you can start with a blank canvas or upload your own picture, then use a text prompt to adjust or change things, remove someone, change the setting, tweak lighting, etc. while keeping everything else the same. It also accepts multiple reference images, so you can mix styles or pull ideas from several visuals at once.
What makes Seedream 4.0 stand out is its blend of quality and flexibility. It supports high-resolution output (up to 4K), works faster than earlier versions, and handles “knowledge-driven” edits like illustrations or diagrams more reliably. It claims to be better than Nano Banana for image editing, but they are both excellent, in my experience.
