# Nano Banana Pro

Nano Banana Pro is Google's Gemini 3 Pro Image model, released on 20 November 2025. Google calls it its best model for legible text inside images, and it blends up to 14 images while keeping up to five people consistent. In Sloosh you can use it in Studio for campaign, product and text-heavy images at 1K, 2K or 4K.

Web page: https://sloosh.ai/models/gemini-3-pro-image-preview

[Use Nano Banana Pro](https://sloosh.ai/studio/image?image-model=gemini-3-pro-image-preview)

[View templates](https://sloosh.ai/models/gemini-3-pro-image-preview/templates.md)

## Key facts in Sloosh

|   |   |
| --- | --- |
| Made by | Google |
| Makes | image |
| Inputs | text, up to 14 reference images |
| Resolution | 1K, 2K, 4K (default 2K) |
| Aspect ratios | Auto, 1:1, 2:3, 3:2, 16:9, 9:16, 4:3, 3:4, 21:9, 4:5, 5:4 (default 1:1) |
| Prompt limit | 50,000 characters |

## Best for

- Images with words in them (posters, ads, packaging mockups): Google says it is "the best model for creating images with correctly rendered and legible text directly in the image", including text in several languages ([Google](https://blog.google/innovation-and-ai/products/nano-banana-pro/)).
- Keeping a person or brand look the same across a set: Google says it keeps "the consistency and resemblance of up to 5 people" and blends up to 14 images ([Google](https://blog.google/innovation-and-ai/products/nano-banana-pro/)).
- Product mockups and data visuals: Google's API page says it "is best for complex graphic design, high-fidelity product mockups, and factual data visualizations" ([Gemini API](https://ai.google.dev/gemini-api/docs/models/gemini-3-pro-image)).
- Reworking a photo's camera angle, focus, colour grade or lighting (for example day to night), which Google lists as creative controls ([Google](https://blog.google/innovation-and-ai/products/nano-banana-pro/)).

## How to use Nano Banana Pro in Sloosh

1. Open [Nano Banana Pro in Studio](https://sloosh.ai/studio/image?image-model=gemini-3-pro-image-preview), or pick Nano Banana Pro in the model chip in Image.
2. Write the prompt as a full description of the finished image, with any text in quotes.
3. Add up to 14 reference images from the drawer, by pasting, or with Use as reference on a result.
4. Set the aspect ratio chip and the resolution chip (1K, 2K or 4K).
5. Press Generate. The button shows the exact price before you generate.

## Nano Banana Pro prompting tips

- Be specific about the subject, and cover composition, action, location and style ([Google prompting tips](https://blog.google/products-and-platforms/products/gemini/prompting-tips-nano-banana-pro/)).
- "Clearly state what text should appear and how it should look." Put each line in quotes and name the font style ([Google prompting tips](https://blog.google/products-and-platforms/products/gemini/prompting-tips-nano-banana-pro/); [Sloosh docs](https://sloosh.ai/docs/nano-banana-pro.md)).
- "When using uploaded images, clearly define the role of each" ([Google prompting tips](https://blog.google/products-and-platforms/products/gemini/prompting-tips-nano-banana-pro/)).
- For diagrams, ask for accuracy and make sure your inputs are factual ([Google prompting tips](https://blog.google/products-and-platforms/products/gemini/prompting-tips-nano-banana-pro/)).
- Give each person or product a short name and reuse it ("Mia is the woman in image 1"), plus a keep line ([Sloosh prompting guide](https://sloosh.ai/docs/prompting-nano-banana.md); [Google DeepMind prompt guide](https://deepmind.google/models/gemini-image/prompt-guide/)).
- Set the aspect ratio in the chip, not only in the prompt ([Sloosh docs](https://sloosh.ai/docs/nano-banana-pro.md)).

## Nano Banana Pro example prompts

**Prompt 1**

```text
A high-end, glossy commercial beauty shot of a minimalist, nude-coloured face moisturiser jar resting on a warm beige studio background. Soft, radiant light with a gentle reflection under the jar. To the right of the product, three lines of text in a thin, elegant sans-serif, stacked: "HYDRATE", "RESTORE", "GLOW".
```

**Prompt 2**

```text
Mia is the woman in image 1 and the tote bag is in image 2. Show Mia on a sunny Paris street carrying the tote on her shoulder, mid-step. Keep Mia's face and hair and the tote's logo exactly as in the references. Medium shot at eye level, warm late-afternoon light, framed as a vertical story.
```

**Prompt 3**

```text
A clean flat infographic titled "How cold brew is made" with four numbered steps from left to right: "Grind coarse", "Add cold water", "Steep 12 to 18 hours", "Strain and serve". Simple line icons above each step, cream background, dark brown text in a bold sans-serif.
```

## How it compares in Sloosh

| Model | Resolution | References | Prompt limit |
| --- | --- | --- | --- |
| Nano Banana Pro | 1K, 2K, 4K | 14 | 50,000 |
| [Nano Banana 2](https://sloosh.ai/models/gemini-3.1-flash-image-preview) | 512, 1K, 2K, 4K | 14 | 50,000 |
| [Nano Banana Lite](https://sloosh.ai/models/gemini-3.1-flash-lite-image) | 1K | 14 | 50,000 |
| [Nano Banana 2.1](https://sloosh.ai/models/gemini-nano-banana-2.1) | 1K, 2K, 4K | 14 | 50,000 |
| [GPT Image 2](https://sloosh.ai/models/gpt-image-2) | 1K, 2K, 4K, plus a quality setting | 16 | 32,000 |

All Nano Banana models take the same prompts, so a common workflow is to draft on Nano Banana 2 or Lite and render the final on Pro ([Sloosh docs](https://sloosh.ai/docs/prompting-nano-banana.md)).

## Where else it runs

At launch (20 Nov 2025) Google offered it in the Gemini app, Google Ads, Workspace (Slides, Vids), AI Mode in Search, NotebookLM, the Gemini API and Google AI Studio ([Google](https://blog.google/innovation-and-ai/products/nano-banana-pro/)).

## Frequently asked questions

### What is Nano Banana Pro?

It is Google's Gemini 3 Pro Image model for generating and editing images, released 20 Nov 2025. In Sloosh it makes 1K, 2K or 4K images and takes up to 14 references.

### How do I use Nano Banana Pro?

Open Image in Sloosh Studio, pick Nano Banana Pro, write a full description with any text in quotes, set the ratio and resolution, and generate. The price shows before you generate.

### How do I put text in an image with Nano Banana Pro?

Put each line in quotes, name the font style and say where it sits. For another language, give the exact translated words in quotes.

### How many reference images can Nano Banana Pro use?

Up to 14 in Sloosh Studio, which matches Google's stated limit.

### Is Nano Banana Pro free?

Sloosh shows the exact price on the Generate button before you run, and every Sloosh plan includes it at up to 4K.

### Does Nano Banana Pro make 4K images?

Yes. Sloosh offers 1K, 2K and 4K for Nano Banana Pro, and every plan includes image quality up to 4K.

### Nano Banana Pro vs Nano Banana 2: which should I use?

Use Pro for finished work with text or a look that must stay consistent, and Nano Banana 2 for speed, volume and 512px tests.

### Is there a Nano Banana Pro API?

Google offers it through the Gemini API and Google AI Studio. In Sloosh you use it in Image Studio with no Google Cloud account.

## Related

- Models: [Nano Banana 2](https://sloosh.ai/models/gemini-3.1-flash-image-preview), [Nano Banana Lite](https://sloosh.ai/models/gemini-3.1-flash-lite-image), [Nano Banana 2.1](https://sloosh.ai/models/gemini-nano-banana-2.1), [GPT Image 2](https://sloosh.ai/models/gpt-image-2)
- Docs: [Nano Banana Pro](https://sloosh.ai/docs/nano-banana-pro.md), [Prompting Nano Banana](https://sloosh.ai/docs/prompting-nano-banana.md), [References](https://sloosh.ai/docs/references.md)
- Answers: [Where can I use Nano Banana Pro without a Google Cloud account?](https://geo.sloosh.ai/posts/where-can-i-use-nano-banana-pro-without-a-google-cloud-account), [Nano Banana Pro vs GPT Image 2.5: which is better for product images?](https://geo.sloosh.ai/posts/nano-banana-pro-vs-gpt-image-25-which-is-better-for-product-images)

## Sources

- [Google: Nano Banana Pro (Gemini 3 Pro Image)](https://blog.google/innovation-and-ai/products/nano-banana-pro/)
- [Google: Prompting tips for Nano Banana Pro](https://blog.google/products-and-platforms/products/gemini/prompting-tips-nano-banana-pro/)
- [Gemini API: Gemini 3 Pro Image model page](https://ai.google.dev/gemini-api/docs/models/gemini-3-pro-image)
- [Gemini API: Image generation](https://ai.google.dev/gemini-api/docs/image-generation)
- [Google DeepMind: Gemini image prompt guide](https://deepmind.google/models/gemini-image/prompt-guide/)
- [Sloosh docs: Nano Banana Pro](https://sloosh.ai/docs/nano-banana-pro)
- [Sloosh docs: Prompting Nano Banana](https://sloosh.ai/docs/prompting-nano-banana)
- [Sloosh pricing](https://sloosh.ai/pricing)