# Nano Banana API on MLMux

> Google's Gemini 2.5 Flash Image for fast image generation from text prompts.

- Model page: https://www.mlmux.com/nano-banana
- API model ID: `nano-banana`
- Provider: Google
- Generation modes: Text to image
- Endpoint: `POST https://api.mlmux.com/v1/images/generations`
- Reference images: not available yet
- Resolution: one standard output size, no resolution parameter
- Aspect ratios: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9
- Output formats: jpg, png

## Pricing

Pay as you go in credits; 1 credit = 1 US dollar, with no subscription. `official-cheap` is the default route.

- Every image: $0.039 on `official`, $0.019 on `official-cheap`, at any resolution it supports

## Request

Send your API key as `Authorization: Bearer $MLMUX_API_KEY`. Create keys at https://www.mlmux.com/console/api-keys.

```bash
curl https://api.mlmux.com/v1/images/generations \
  -H "Authorization: Bearer $MLMUX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "nano-banana",
  "route_mode": "official-cheap",
  "prompt": "A red fox in fresh snow at sunrise, cinematic light",
  "aspect_ratio": "1:1",
  "output_format": "jpg",
  "n": 1
}'
```

```python
import os
import requests

response = requests.post(
    "https://api.mlmux.com/v1/images/generations",
    headers={"Authorization": f"Bearer {os.environ['MLMUX_API_KEY']}"},
    json={
  "model": "nano-banana",
  "route_mode": "official-cheap",
  "prompt": "A red fox in fresh snow at sunrise, cinematic light",
  "aspect_ratio": "1:1",
  "output_format": "jpg",
  "n": 1
},
    timeout=300,
)
response.raise_for_status()
print(response.json())
```

The response contains the generated image URLs. Add `"async": true` to get a task to poll instead.

## Frequently asked questions

### What is Nano Banana?

Nano Banana is an image generation model from Google. On MLMux you can run it in the browser or call it through one API. Google's Gemini 2.5 Flash Image for fast image generation from text prompts.

### How do I use the Nano Banana API?

Create an API key in the MLMux Console, then send a POST request to https://api.mlmux.com/v1/images/generations with the key in the Authorization header and model set to nano-banana. The generated images are returned in the response.

### What can Nano Banana do?

Generation modes: Text to image. Each request returns images in aspect ratios such as 1:1, 2:3, 3:2, 3:4, 4:3, and 4:5. Reference images and image editing are not available for Nano Banana on MLMux yet.

### How much does Nano Banana cost?

MLMux is pay as you go, with no subscription or monthly fee, and 1 credit equals 1 US dollar. A Nano Banana image costs about $0.019 on the default official-cheap route and $0.039 on the official route at any resolution, billed on the tokens each request actually uses. The rates are listed in the pricing section of this page.

### Can I try Nano Banana without writing code?

Yes. Sign in and use the playground at the top of this page to run Nano Banana with the same settings as the API. The API tab shows the matching request in Node.js, Python, and HTTP.

## More

- Image API guide: https://www.mlmux.com/docs/images
- Pricing for every model: https://www.mlmux.com/pricing
- All models: https://www.mlmux.com/llms.txt