# Nano Banana 2 Lite model guide

A practical guide to Nano Banana 2 Lite on GPT Image Hub: Google's fastest and cheapest Gemini image model, with measured render times, real 1K examples, and when to pick Nano Banana 2.1 instead.

URL: https://www.gptimagehub.com/models/nanobanana2-lite
Official model ID: gemini-3.1-flash-lite-image
Provider: Google Gemini
Updated: 2026-10-23

## Direct answer

Nano Banana 2 Lite is Google's fastest and cheapest Gemini image model. On GPT Image Hub it renders 1K images for 27 credits, and in the Hub's tests most images finished in 12 to 26 seconds. Google notes that it is not optimized for many reference images or long edit sequences, so choose Nano Banana 2.1 for text-heavy layouts, 2K or 4K output, and multi-image edits.

## Model facts

- Official model ID: gemini-3.1-flash-lite-image
- Provider: Google Gemini
- Hub quality tier: 1K
- Reference images: Up to 3
- Price: 27 credits at 1K
- Cost per image: 27 credits (≈ $0.027 at the Plus pack rate); pricing: https://www.gptimagehub.com/pricing

## Best use cases

- Icon, sticker, and emoji-style concepts.
- Fast drafts before a final render on a larger model.
- Simple product and interior scenes at 1K.
- High-volume prompt testing where speed matters most.

## Where to be careful

- 2K or 4K output; Lite renders 1K only. Use Nano Banana 2.1 for larger sizes.
- Multi-reference or multi-step edits, which Google says Lite is not optimized for.

## Prompting guidance

- Name the format first: icon set, sticker, product shot, or concept sheet.
- Lite may add short labels to sheets; say "no labels" when you need a clean image.
- Keep prompts short and visual; Lite favors clear, simple compositions.
- For edits, attach one reference and say exactly what to keep.

## Example prompts

```text
Three app icon concepts for a weather app on one sheet: sun, cloud and raindrop motifs, rounded squares, soft gradients, clean vector style, no text.
```

```text
Die-cut sticker of a cheerful avocado character giving a thumbs up, thick white outline, flat colors, subtle drop shadow, plain light grey background, no text.
```

```text
Using the reference sheet, turn the cloud icon into a single app icon on a light background, keep its colors and style, no text.
```

## Sources

- [Gemini API image generation guide](https://ai.google.dev/gemini-api/docs/image-generation)
- [Gemini API pricing](https://ai.google.dev/gemini-api/docs/pricing)

## FAQ

### How is Nano Banana 2 Lite different from Nano Banana 2.1?

Google describes Lite as its fastest and cheapest Gemini image model. It renders 1K only and is not optimized for many reference images or multi-step edits. Nano Banana 2.1 adds 2K and 4K and handles text-heavy layouts and multi-image edits better. On GPT Image Hub both cost 27 credits at 1K.

### How fast is Nano Banana 2 Lite?

In the Hub's tests most 1K images took 12 to 26 seconds; one product scene took 112 seconds.

### Can Nano Banana 2 Lite edit images?

Yes. Attach up to 3 reference images, although Google recommends other models for complex multi-image edits. In the Hub's test it turned one icon from a concept sheet into a finished app icon in 26 seconds.