Nano Banana Pro vs Seedream
A practical comparison of two image models: what each does best, what it costs, and how they differ on the same prompts.
Quick verdict
Google’s Gemini 3 Pro Image: photoreal scenes with world knowledge, up to 4K.
Choose Nano Banana Pro for
- Photoreal lifestyle and portrait images
- Image editing and multi-reference compositing
- Infographics that need factual detail
ByteDance
ByteDance’s fast unified model for generation and editing.
Choose Seedream for
- Chinese-language marketing visuals
- Batch generation via API
Specs side by side
| Spec | Nano Banana Pro | Seedream |
|---|---|---|
| Developer | ByteDance | |
| Type | image | image |
| Where to use it | AiLoft web app, Gemini app, Gemini API / Vertex AI | ByteDance Volcano Engine / BytePlus APIs and partner apps |
| Price | 10 credits / image | Priced per image through API providers. |
| Open weights | No | No |
| Resolutions | 1K · 2K · 4K | — |
| Aspect ratios | 1:1 · 2:3 · 3:2 · 3:4 · 4:3 · 9:16 · 16:9 | — |
| Reference / start images | Yes | — |
| Transparent background | No | — |
Same prompt, side by side
Seedream isn’t on AiLoft, but you can run these prompts on Nano Banana Pro and compare with your own Seedream results.
Text rendering
What it testsSpelling, kerning and layout of a multi-line headline.
A minimalist concert poster for a jazz night called "BLUE HOUR SESSIONS", date "FRI 14 NOV", deep navy background, a single brass trumpet lit by a warm spotlight, Swiss-style typography, generous negative space
Photorealism
What it testsSkin texture, natural light and believable depth of field.
Candid street portrait of an elderly fisherman mending a net at golden hour, weathered skin, salt in his beard, harbor bokeh behind him, shot on 85mm f/1.8, natural color grading
Product shot
What it testsMaterials, reflections and clean e-commerce lighting.
Premium product photo of a frosted glass perfume bottle with a brushed gold cap on a travertine plinth, soft window light from the left, subtle shadow, beige seamless backdrop, 1:1
Complex scene
What it testsCounting objects and placing many elements correctly.
Isometric illustration of a tiny cozy bookshop: three shelves, a sleeping orange cat on the counter, a red bicycle outside the door, two customers reading, warm evening lights, pastel palette
Strengths and limitations
Nano Banana Pro
- Photorealism with accurate lighting and materials
- Blends up to several reference images into one scene
- Keeps characters consistent across edits
- Flat price for 1K, 2K and 4K output
- No transparent background output
- Fewer aspect ratios than GPT Image 2.5
- Slower than Nano Banana 2 on simple prompts
Seedream
- Fast high-resolution output
- Good with Chinese prompts and text
- Mostly accessed through APIs and partner apps
Real examples
FAQ
Is Nano Banana Pro better than Seedream?
Neither wins everywhere. Nano Banana Pro’s standout strength: photorealism with accurate lighting and materials. Seedream’s standout strength: fast high-resolution output. The quickest way to decide is to run your own prompt on both.
Which is cheaper, Nano Banana Pro or Seedream?
Nano Banana Pro: 10 credits / image Seedream: Priced per image through API providers.
Can I use Nano Banana Pro and Seedream in one place?
Nano Banana Pro is available on AiLoft, where you can compare it against other models in one click. Seedream has to be used through: ByteDance Volcano Engine / BytePlus APIs and partner apps.
Are Nano Banana Pro and Seedream open source?
Nano Banana Pro is closed. Seedream is closed.
Stop guessing — compare on your own prompt
Pick up to 4 image models (or 3 video models), write one prompt, and see every result side by side.