# Nano Banana Pro model guide

A guide to Nano Banana Pro on GPT Image Hub, covering Gemini 3 Pro Image use cases, 4K workflows, reference-image handling, text rendering, and when to choose it.

URL: https://www.gptimagehub.com/models/nanobananapro
Official model ID: gemini-3-pro-image-preview
Provider: Google Gemini
Updated: 2026-04-30

## Direct answer

Nano Banana Pro is the premium Gemini image option on GPT Image Hub. Use it for detailed, high-resolution images, complex visual reasoning, branded scenes, product concepts, and outputs where typography or real-world knowledge may matter. It supports up to 14 reference images and 1K, 2K, and 4K tiers in the app.

## Model facts

- Official model ID: gemini-3-pro-image-preview
- Provider: Google Gemini
- Hub quality tiers: 1K, 2K, 4K
- Reference images: Up to 14
- Cost per image: 108–193 credits (≈ $0.108–$0.193 at the Plus pack rate); pricing: https://www.gptimagehub.com/pricing

## Best use cases

- High-detail product scenes, editorial campaigns, ad concepts, cinematic images, and brand art direction.
- Prompts that include layout, on-image text, factual context, or multi-step visual constraints.
- Final Gemini-based exports where 4K detail matters.
- Reference-driven scenes with a clear style board and multiple product or character references.

## Where to be careful

- Very cheap or very fast first-pass brainstorming where Nano Banana is sufficient.
- Simple variants that do not need Pro-level reasoning.
- Workflows that specifically need OpenAI GPT Image 2 behavior or its broader app aspect-ratio list.

## Prompting guidance

- Give the model the goal first: ad hero, poster, product image, UI asset, or edit.
- Spell out text exactly and keep it short when typography matters.
- Use numbered constraints for complex scenes so details are easier to preserve.
- When using references, define each image's role and ask for consistency across subject, lighting, and material.

## Example prompts

```text
Create a 4K luxury perfume ad for a jasmine fragrance, glass bottle on wet black stone, white petals, golden rim light, clean headline text "NIGHT JASMINE", premium editorial photography.
```

```text
Use the product references to create a consistent three-image campaign concept: hero image, close-up detail, and lifestyle shot, same warm lighting, same materials, no extra logos.
```

```text
Generate a detailed infographic-style product comparison image for four AI image models, clean SaaS visual language, readable labels, dark background, orange and violet accents.
```

## Sources

- [Google Gemini image generation docs](https://ai.google.dev/gemini-api/docs/image-generation)
- [Gemini 3 Pro Image developer announcement](https://blog.google/technology/developers/gemini-3-pro-image-developers/)
- [Gemini 3 Pro Image Preview model page](https://ai.google.dev/gemini-api/docs/models/gemini-3-pro-image-preview)

## FAQ

### When should I choose Nano Banana Pro?

Choose Nano Banana Pro when the request needs stronger reasoning, high detail, 4K output, multiple references, or more reliable text and layout handling than a fast draft model.

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

GPT Image Hub currently allows up to 14 reference images for Nano Banana Pro.

### Is Nano Banana Pro always better than Nano Banana 2?

Not always. Nano Banana Pro is better for complex final work, while Nano Banana 2 is often the more efficient choice for balanced production drafts.