wavespeed-nano-banana-2

# WaveSpeedAI Nano Banana 2 Image Generation/Editing

Generate and edit images using Google's Nano Banana 2 model via the WaveSpeed AI platform. Supports both text-to-image generation and natural-language image editing with up to 14 input images.

## Authentication

```bash
export WAVESPEED_API_KEY="your-api-key"
```

Get your API key at [wavespeed.ai/accesskey](https://wavespeed.ai/accesskey).

## Quick Start

### Text-to-Image

```javascript
import wavespeed from 'wavespeed';

const output_url = (await wavespeed.run(
  "google/nano-banana-2/text-to-image",
  { prompt: "A serene Japanese garden with cherry blossoms, watercolor style" }
))["outputs"][0];
```

### Image Editing

The `images` parameter accepts an array of image URLs. If you have local files, upload them first with `wavespeed.upload()` to get a URL.

```javascript
import wavespeed from 'wavespeed';

// Upload a local image to get a URL
const imageUrl = await wavespeed.upload("/path/to/photo.png");

const output_url = (await wavespeed.run(
  "google/nano-banana-2/edit",
  {
    images: [imageUrl],
    prompt: "Replace the sky with a dramatic sunset"
  }
))["outputs"][0];
```

You can also pass existing image URLs directly:

```javascript
const output_url = (await wavespeed.run(
  "google/nano-banana-2/edit",
  {
    images: ["https://example.com/photo.jpg"],
    prompt: "Replace the sky with a dramatic sunset"
  }
))["outputs"][0];
```

## API Endpoints

### Text-to-Image

**Model ID:** `google/nano-banana-2/text-to-image`

Generate images from text prompts.

#### Parameters

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| `prompt` | string | Yes | -- | Text description of the image to generate |
| `aspect_ratio` | string | No | -- | Output aspect ratio. One of: `1:1`, `3:2`, `2:3`, `3:4`, `4:3`, `4:5`, `5:4`, `9:16`, `16:9`, `21:9`, `1:4`, `4:1`, `1:8`, `8:1` |
| `resolution` | string | No | `1k` | Image resolution. One of: `1k`, `2k`, `...