---
title: Gemini (Nano Banana)
description: "*Configuring Gemini (Nano Banana) in Source* **Pro** (you pay Google for usage). **Gemini (Nano Banana)** is Google’s native image generation. Flash (Nano Banana 2) is the default; Pro (Nano Banana Pro) is higher quality. It *generates* an image from your…"
url: "https://magic-post-thumbnail.com/docs/gemini/"
updated: "2026-08-16"
category: Image Databases
---

# Gemini (Nano Banana)

*Configuring Gemini (Nano Banana) in Source*

**Pro** (you pay Google for usage). **Gemini (Nano Banana)** is Google’s native image generation. Flash (Nano Banana 2) is the default; Pro (Nano Banana Pro) is higher quality. It *generates* an image from your keywords — it does not search a photo library.

This is **not** Imagen 4. Imagen 3/4 stay available via the [Replicate](https://magic-post-thumbnail.com/docs/replicate/) bank.

![Gemini (Nano Banana) bank settings](https://magic-post-thumbnail.com/wp-content/uploads/2026/08/panel-gemini.png)

## Where to enable it

Open **Source**, add **Gemini (Nano Banana)** (badge **AI**, locked as **Pro** on the free plugin) to the **Automatic generation chain**, then click **Configure**. Style presets on **Automatic → Image Placement** apply when this bank generates. The Gutenberg block cannot search Gemini (photo tabs only).

## Get an API key

Create a key in [Google AI Studio](https://aistudio.google.com/apikey). Paste it in the Gemini panel and click **API testing**. This dedicated bank uses your Google AI Studio key — not a Replicate token.

## Options

- **API Key** — Required. Your Google AI Studio key.
- **Model** — Nano Banana 2 (Flash) — `gemini-3.1-flash-image` (default, faster) — or Nano Banana Pro — `gemini-3-pro-image` (higher quality).
- **Aspect Ratio** — 1:1, 16:9 (default) or 9:16.

## Time, billing and restrictions

**Caution:** generation can take **10 to 40 seconds**. Generated images include a **SynthID watermark**.

Previewing this bank on Source consumes Google tokens — the plugin warns you and asks for confirmation before an AI preview. The plugin does not charge per image. Google bills the key you enter.