Seedream 4.5
ByteDance's flagship image model — the strongest pick for Chinese-language prompts and the only model here that accepts up to 14 reference images at once.
- Vendor
- ByteDance
- Released
- Dec 2025
- Max resolution
- 4K native
- Best for
- Chinese prompts
What Seedream 4.5 is good at
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Best-in-class Chinese-language prompts
Same model family that powers Doubao and Jimeng — ByteDance trained it on far more Chinese supervision data than Western competitors had access to. Chinese prompts produce noticeably better results here than on GPT Image 2 or Nano Banana, no translation step required.
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Up to 14 reference images at once
The largest reference-image budget of any model on the platform. Useful for storyboards (give it the whole character sheet), product variations (multiple angle references), and composition mockups where you want a specific layout, style and palette mixed from separate references.
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Accurate in-image text rendering
Not at GPT Image 2's 99% level, but well above what older models managed. Readable captions, signage, and short headlines come out reliably enough for social posts and marketing visuals.
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Native 4K output
Renders at 4K natively rather than upscaling. Pairs well with the reference-image features for high-resolution product photography and editorial work.
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Same price for T2I and I2I
Both text-to-image and image-to-image cost 4 credits regardless of resolution. Most other providers charge a premium for I2I — Seedream does not, which makes it the cheapest path for reference-driven workflows.
When to reach for Seedream 4.5
- +Chinese-language prompts — Seedream is meaningfully stronger here than the Google or OpenAI models.
- +Reference-heavy workflows (storyboards, product variants, multi-reference composites) — 14-image budget is unique.
- +Cinematic, editorial, social-media aesthetics — the model leans this way by default.
- +Image-to-image work where the cost premium other models charge would add up.
- −Pure English photorealism — Nano Banana Pro and GPT Image 2 typically edge it out.
- −Reasoning-heavy multi-constraint prompts — GPT Image 2 still leads on that axis.
- −Anything Latin-script text-heavy where the 99% accuracy threshold of GPT Image 2 matters more than aesthetic.
Credits per generation
| Resolution | Credits |
|---|---|
| 1K | 4 |
| 2K | 4 |
| 4K | 4 |
1 credit ≈ one 1K Nano Banana generation. See pricing for monthly credit bundles.
Seedream 4.5 is ByteDance's image generation flagship, released December 2025. It is the same model family that powers Doubao and Jimeng — the dominant AI image products on Chinese social platforms — and it carries that DNA: strong Chinese prompts, cinematic aesthetics, and a reference-image system built for mix-and-match composition.
CVY.AI exposes it via Kie as `seedream/4.5-text-to-image`. It is the right pick if you write prompts in Chinese, if you need to feed multiple reference images into one composition, or if you want output with the slightly more stylized "Doubao / Jimeng" feel that reads as Chinese-social-platform native.
For pure English-language photorealism, GPT Image 2 and Nano Banana Pro usually score higher. Seedream lives in the middle of the lineup as the "best of both" pick for bilingual creators and reference-driven work — competitive on quality, unique on multi-reference capacity, and uniformly priced at 4 credits per image whether T2I or I2I.
我用中文 prompt 可以吗？+
How does Seedream 4.5 compare to earlier or later versions?+
Does it work for image-to-image edits?+
Can I use the output commercially?+
Compare other AI image models
Use these pages to pick between speed, output quality, text rendering, and prompt-language fit.
Nano Banana
Google's fast everyday image model — the one to reach for when you want a usable result in under five seconds.
Nano Banana Pro
Google's flagship image model — reasoning-powered, native 4K, the one you reach for when the image has to survive close inspection.
GPT Image 2
OpenAI's reasoning-powered image model — the one that finally renders readable text, infographics, slides and multilingual layouts.
Ready to try Seedream 4.5?
Open the generator with Seedream 4.5 preselected, or browse community work for inspiration.