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

# Nano Banana Models Guide | Nano Banana, Nano Banana 2, Nano Banana Pro

> Compare Nano Banana, Nano Banana 2, Nano Banana 2 Lite, and Nano Banana Pro on TTAPI, including official Gemini model names such as gemini-2.5-flash-image, gemini-3-pro-image-preview, gemini-3.1-flash-image-preview, and gemini-3.1-flash-lite-image.

# Nano Banana Models Guide

Use this guide when you want to understand the full **Nano Banana API** family on TTAPI.

The Nano Banana product family includes:

* `Nano Banana`
* `Nano Banana 2`
* `Nano Banana 2 Lite`
* `Nano Banana Pro`

## Official Model Mapping

| Official model name              | Product name         |
| :------------------------------- | :------------------- |
| `gemini-2.5-flash-image`         | `Nano Banana`        |
| `gemini-2.5-flash-image-preview` | `Nano Banana`        |
| `gemini-3-pro-image-preview`     | `Nano Banana Pro`    |
| `gemini-3.1-flash-image-preview` | `Nano Banana 2`      |
| `gemini-3.1-flash-lite-image`    | `Nano Banana 2 Lite` |

## Nano Banana vs Nano Banana 2 vs Nano Banana 2 Lite vs Nano Banana Pro

| Product              | Official model names                                       | Recommended use                                                                                          |
| :------------------- | :--------------------------------------------------------- | :------------------------------------------------------------------------------------------------------- |
| `Nano Banana`        | `gemini-2.5-flash-image`, `gemini-2.5-flash-image-preview` | General-purpose image generation and baseline Nano Banana workflows                                      |
| `Nano Banana 2`      | `gemini-3.1-flash-image-preview`                           | Workflows that specifically target the newer Nano Banana 2 model line                                    |
| `Nano Banana 2 Lite` | `gemini-3.1-flash-lite-image`                              | Lightweight, lowest-cost Nano Banana 2 tier for high-volume generation where speed and price matter most |
| `Nano Banana Pro`    | `gemini-3-pro-image-preview`                               | Premium image generation and higher-end creative output                                                  |

## Which Model Should You Choose

* Choose `Nano Banana` when you want the default family entry point.
* Choose `Nano Banana 2` when your integration or prompt testing targets the `gemini-3.1-flash-image-preview` line.
* Choose `Nano Banana 2 Lite` when you want the cheapest Nano Banana 2 option (`gemini-3.1-flash-lite-image`) for high-volume, cost-sensitive generation.
* Choose `Nano Banana Pro` when your use case needs the `gemini-3-pro-image-preview` line.

## Recommended TTAPI Workflow

1. Start from the [Nano Banana API overview](/api/en/gemini) to confirm the family and model mapping.
2. Use the [Nano Banana Generate API](/api/en/gemini/generate) for image generation requests.
3. Pass the alias or official model name that matches the workflow you want to build.

## Before You Integrate

* Review [Gateway & Auth](/grids/en/development/authentication) so each image request includes the correct `TT-API-KEY`.
* Review [Image Pricing](/grids/en/start/pricing/image) before enabling production traffic.
* Use the [Nano Banana API overview](/api/en/gemini) if you want the main keyword landing page before endpoint-level docs.

## Related Pages

* [Nano Banana API overview](/api/en/gemini)
* [Nano Banana Generate API](/api/en/gemini/generate)

## Nano Banana FAQ

### Should I use Nano Banana aliases or official Gemini model names?

TTAPI supports both the **Nano Banana** family naming and the official Gemini model names, so you can choose the naming style that best fits your integration and internal documentation.

### Which page should I start with for Nano Banana API documentation?

Start with the [Nano Banana API overview](/api/en/gemini) for the main documentation page, then use the [Nano Banana Generate API](/api/en/gemini/generate) when you are ready to send requests.