Seedream 4.5

Seedream 4.5 is ByteDance's image model, tuned for editing and layout. It's an all-round upgrade over Seedream 4.0 — better prompt adherence, stronger reference fidelity, and cleaner typography. It's at its best on multi-image editing, keeping faces, lighting, and color faithful to your references, and on designer-grade posters and logos with crisp, readable text. On Image 2 it runs in one editor for both text-to-image and image-to-image.

Yes. Switch to image-to-image, upload one or more images, and describe the change in plain language — swap a material, restyle an outfit, add elements, or adjust the lighting while keeping the subject recognizable. A single request can take up to 14 reference images, which helps when you want the result to draw on or stay faithful to several inputs at once.

You can render at 2K or 4K. 2K is great for quick drafts, social posts, and on-screen use, while 4K adds detail for large layouts, print, or anything you plan to crop into. Both cost the same per image, so you can jump to 4K whenever the final use calls for it without paying more.

Eight ratios are available: 1:1, 4:3, 3:4, 16:9, 9:16, 2:3, 3:2, and 21:9. That covers square posts, vertical formats for stories and posters, standard landscape and portrait, and ultra-wide 21:9 for cinematic key visuals. Pick the ratio before you generate so the composition is framed right from the start.

Reach for Seedream 4.5 when the job is editing or layout — multi-image composites, reference-faithful changes, material swaps, posters, logos, and in-image text. Choose GPT Image 2 when you want its particular typography style and reference handling. They're complementary, so plenty of people keep both within reach.

Every image costs 6 credits — the same whether you generate from text or a reference, and whether you choose 2K or 4K. You also get free credits every day to keep experimenting.

It depends on the Image 2 terms, the model's own terms, and your rights to the prompts, uploads, brands, and references involved. It's worth reviewing these before you publish client or paid work.

Most images come back in well under a minute, though it varies with current demand, prompt complexity, and how many references you add. The result panel updates on its own as soon as your image is ready.

You can start for free — new accounts come with registration credits to spend right away. After that you can top up by purchasing credit packages, claiming daily check-in rewards, or inviting friends. Each Seedream 4.5 image costs 6 credits, so your free balance is enough to test real prompts before you decide to buy.

Both live in the same editor and handle text-to-image and reference editing the same way, so day to day they feel alike. The clearest difference is resolution: Seedream 4.5 renders up to 4K for print-size and large-canvas work, while Seedream 5.0 Lite is the lighter, newer build that tops out at 3K. When you can't decide, run the same prompt through both and keep whichever look you prefer.