# Nano Banana 2

> Google's main image model: fast pictures and photo edits, accurate text on images, up to 14 photos at once.

Nano Banana 2 is Google's main image model. It keeps faces and characters recognisable, writes readable text on pictures, understands long detailed descriptions and can use up to 14 of your photos to edit, combine or copy a style.

| Mode | ID | Price |
|---|---|---|
| [Edit a photo](#edit-a-photo) | `nano-banana-2` | 0.5K $0.015 · 1K $0.015 · 2K $0.020 · 4K $0.025 |
| [Create a picture](#create-a-picture) | `nano-banana-2` | 0.5K $0.015 · 1K $0.015 · 2K $0.020 · 4K $0.025 |

Both modes are one model, `nano-banana-2`: pass photos and it edits them or uses them as references.

## Edit a photo

Upload a photo and describe what to change. ID: `nano-banana-2` · 0.5K $0.015 · 1K $0.015 · 2K $0.020 · 4K $0.025 per image · under 1 min

**Parameters** (field `input`)

| Parameter | Required | Description | Values (default in bold) |
|---|---|---|---|
| `prompt` | yes | What to draw or what to change | text, up to 20000 chars |
| `image_input` | yes | Links to your photos (https), up to 14 | `["https://…"]` |
| `aspect_ratio` | no | Image shape | **`auto`** `1:1` `2:3` `3:2` `3:4` `4:3` `4:5` `5:4` `9:16` `16:9` `21:9` `1:4` `4:1` `1:8` `8:1` |
| `resolution` | no | Long side: 0.5K ≈ 512 px, 1K ≈ 1024 px, 2K ≈ 2048 px, 4K ≈ 4096 px. Sizes above native are an upscale of the finished picture (Lanczos + light sharpening): 4K on Nano Banana 2 and Pro from 2K, 2K on Nano Banana from 1K, 2K and 4K on GPT Image from its native ~1.5K | `0.5K` **`1K`** `2K` `4K` |
| `output_format` | no | File format | **`jpg`** `png` |

**Example**

```bash
curl -X POST https://mixmedia.tech/api/v1/jobs/createTask \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"nano-banana-2","input":{"prompt":"Make the background a neon city at night","image_input":["https://mixmedia.tech/static/img/previews/gpt-t2i.jpg"],"aspect_ratio":"auto","resolution":"1K"}}'
```

```python
import os, requests

r = requests.post(
    "https://mixmedia.tech/api/v1/jobs/createTask",
    headers={"Authorization": f"Bearer {os.environ['API_KEY']}"},
    json={
      "model": "nano-banana-2",
      "input": {
        "prompt": "Make the background a neon city at night",
        "image_input": [
          "https://mixmedia.tech/static/img/previews/gpt-t2i.jpg"
        ],
        "aspect_ratio": "auto",
        "resolution": "1K"
      }
    },
)
print(r.json())  # {"code": 200, "data": {"taskId": "..."}}
```

```javascript
const r = await fetch("https://mixmedia.tech/api/v1/jobs/createTask", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.API_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({
    "model": "nano-banana-2",
    "input": {
      "prompt": "Make the background a neon city at night",
      "image_input": [
        "https://mixmedia.tech/static/img/previews/gpt-t2i.jpg"
      ],
      "aspect_ratio": "auto",
      "resolution": "1K"
    }
  }),
});
console.log(await r.json()); // { code: 200, data: { taskId: "..." } }
```

## Create a picture

Describe the picture and the model creates it from scratch. ID: `nano-banana-2` · 0.5K $0.015 · 1K $0.015 · 2K $0.020 · 4K $0.025 per image · under 1 min

**Parameters** (field `input`)

| Parameter | Required | Description | Values (default in bold) |
|---|---|---|---|
| `prompt` | yes | What to draw or what to change | text, up to 20000 chars |
| `aspect_ratio` | no | Image shape | **`auto`** `1:1` `2:3` `3:2` `3:4` `4:3` `4:5` `5:4` `9:16` `16:9` `21:9` `1:4` `4:1` `1:8` `8:1` |
| `resolution` | no | Long side: 0.5K ≈ 512 px, 1K ≈ 1024 px, 2K ≈ 2048 px, 4K ≈ 4096 px. Sizes above native are an upscale of the finished picture (Lanczos + light sharpening): 4K on Nano Banana 2 and Pro from 2K, 2K on Nano Banana from 1K, 2K and 4K on GPT Image from its native ~1.5K | `0.5K` **`1K`** `2K` `4K` |
| `output_format` | no | File format | **`jpg`** `png` |

**Example**

```bash
curl -X POST https://mixmedia.tech/api/v1/jobs/createTask \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"nano-banana-2","input":{"prompt":"A cat astronaut in a neon city, cinematic light","aspect_ratio":"auto","resolution":"1K"}}'
```

```python
import os, requests

r = requests.post(
    "https://mixmedia.tech/api/v1/jobs/createTask",
    headers={"Authorization": f"Bearer {os.environ['API_KEY']}"},
    json={
      "model": "nano-banana-2",
      "input": {
        "prompt": "A cat astronaut in a neon city, cinematic light",
        "aspect_ratio": "auto",
        "resolution": "1K"
      }
    },
)
print(r.json())  # {"code": 200, "data": {"taskId": "..."}}
```

```javascript
const r = await fetch("https://mixmedia.tech/api/v1/jobs/createTask", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.API_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({
    "model": "nano-banana-2",
    "input": {
      "prompt": "A cat astronaut in a neon city, cinematic light",
      "aspect_ratio": "auto",
      "resolution": "1K"
    }
  }),
});
console.log(await r.json()); // { code: 200, data: { taskId: "..." } }
```

## Compatibility

apimart/OpenAI-style requests work too:

- `model`: `nano-banana-2`, `google/nano-banana-2`, `nano-banana-2-ext`, `gemini-3.1-flash-image-preview`, `gemini-3.1-flash-image-preview-official`.
- `size` instead of `aspect_ratio`: a ratio (`16:9`) or exact pixels (`1600x1200`) — we use the closest supported ratio.
- Photos can go in `image_urls`, `image_input` or `input_urls`. Parameters may also be sent at the top level of the body, without the `input` wrapper.
- `resolution` in any case (`1k`, `2K`); `jpg` and `jpeg` are the same. `n` must be `1` (one image per request).
- `nsfw_check`, `official_fallback`, `google_search` are accepted but do not change the result.

## Result

Same as any task: call [recordInfo](https://docs.mixmedia.tech/en/endpoints/record-info) or receive a [callback](https://docs.mixmedia.tech/en/callbacks). Image links are in `resultJson` (kept for 24 hours).

Upload your photos via [files/upload](https://docs.mixmedia.tech/en/endpoints/upload) or pass any public https links.