> ## Documentation Index
> Fetch the complete documentation index at: https://docs.yingtu.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Gemini 3 Pro Image on YingTu

> Choose Nano Banana Pro for complex layouts, premium mockups, and high-resolution image work that justifies a higher request price.

`gemini-3-pro-image` is the premium Nano Banana option on YingTu. It is intended
for work where layout complexity, text rendering, professional mockups, or
high-resolution delivery matter more than minimizing request cost.

Google positions Nano Banana Pro as a reasoning-driven generator and editor for
professional design, high-fidelity product mockups, and factual visualizations.
That is upstream product positioning, not a guarantee that it wins every prompt.
See the official [model page](https://ai.google.dev/gemini-api/docs/models/gemini-3-pro-image).

## What YingTu verified

The 4K synchronous request completed with a 4096 × 4096 JPEG. A 1K asynchronous
task completed with a 1024 × 1024 JPEG, and a separate edit preserved the source
object while changing the background. The 4K file was about 7.4 MB before
Base64 transport overhead.

## Compare with Nano Banana 2

| Decision          | Pro Image                                                   | Flash Image                                            |
| ----------------- | ----------------------------------------------------------- | ------------------------------------------------------ |
| 1K price          | USD 0.050                                                   | USD 0.025                                              |
| 2K price          | USD 0.050                                                   | USD 0.037                                              |
| 4K price          | USD 0.090                                                   | USD 0.055                                              |
| Upstream position | Professional precision and complex design                   | General-purpose efficiency and resolution flexibility  |
| Start here when   | The asset's complexity or value supports premium evaluation | You need a strong default for broad production traffic |

Do not pay the Pro premium based on the name alone. Run the same brief and
source images through Flash and Pro, then compare the outputs against your
acceptance criteria and retry budget.

<CardGroup cols={2}>
  <Card title="Configure Pro" icon="sliders-horizontal" href="/en/models/image/nano-banana/gemini-3-pro-image/parameters">
    Select the resolution and prepare for large Base64 responses.
  </Card>

  <Card title="Compare the family" icon="columns-3" href="/en/models/image/nano-banana/comparison">
    Decide when the premium tier changes the outcome.
  </Card>
</CardGroup>