# Nano Banana Pro

> Nano Banana Pro generates high-fidelity, context-aware images with accurate multilingual text and multi-image support.


## Overview

- **Endpoint**: `https://api.segmind.com/v1/nano-banana-pro`
- **Model ID**: `nano-banana-pro`
- **Category**: Image-to-Image Transformation
- **Type**: Synchronous (Direct response)

- **Average Cost**: $0.158932032519269


## Pricing

| output_resolution | web_search | cost |
| --- | --- | --- |
| 1K | false | 0.15 |
| 1K | true | 0.165 |
| 2K | false | 0.15 |
| 2K | true | 0.165 |
| 4K | false | 0.25 |
| 4K | true | 0.265 |

## API Information

This model uses a **synchronous response pattern**:
1. Make a POST request with your parameters
2. Receive the output directly in the response (binary for images/videos/audio, JSON for text)
3. No polling required - response is immediate


### Input Schema

The API accepts the following input parameters:

- **`prompt`** (`string`, _required_):
  Prompt
  Describe the image to generate or the changes to make to the reference images.
  - Default: `"Create a multi-panel GTA-style comic page featuring one woman and one man as office coworkers working on a new product launch. Use bold outlines, dramatic GTA loading-screen shading, expressive faces, modern tech office backgrounds.\n\nPanel 1 — Narration:\nThe woman enters the office early, holding a laptop. She looks stressed but determined.\nText: ‘Launch day. Weeks of work… all coming down to this.’\n\nPanel 2 — Dialogue:\nMan appears behind her with a calm, confident smile.\nMan: ‘You’re here early. Ready for the big ship?’\nWoman: ‘Trying to be.’\n\nPanel 3 — Action:\nBoth sit at a desk with screens showing graphs, bugs, and a countdown timer.\nText: ‘One critical bug left… time running out.’\n\nPanel 4 — Dialogue:\nClose-up of the man pointing at the screen.\nMan: ‘Wait—I see it. We can fix this.’\nWoman: ‘Let’s do it.’\n\nPanel 5 — Action:\nBoth typing fast, dramatic GTA-style lighting, code streaming across screens.\nText: ‘Two minds. One mission.’\n\nPanel 6 — Victory:\nThe laptop shows PRODUCT SHIPPED — SUCCESS. Both cheer and laugh in relief.\nWoman: ‘We did it!’\nMan: ‘Told you we’d make it.’\n\nPanel 7 — Narration:\nFinal shot: team walking out of the office at night, city lights behind them.\nText: ‘In tech, wins aren’t solo. They’re shared.’\n\nArt style: GTA loading-screen style, bold color blocks, high contrast shadows, confident comic composition, cinematic frames."`

- **`image_urls`** (`array`, _optional_):
  Reference images
  Optional reference images used to guide generation. Nano Banana Pro accepts up to 14 images.
  - Default: `[]`
  - Item type: string

- **`system_prompt`** (`string`, _optional_):
  System prompt
  Optional high-level persona or style instructions applied to the generation.
  - Default: `""`

- **`aspect_ratio`** (`string`, _optional_):
  Aspect ratio
  Choose the proportions of the generated image. "Auto" lets the model pick.
  - Default: `"1:1"`
  - Options: "auto" (Auto (model decides)), "1:1" (Square (1:1)), "2:3" (Portrait (2:3)), "3:2" (Landscape (3:2)), "4:3" (Landscape (4:3)), "3:4" (Portrait (3:4)), "4:5" (Portrait (4:5)), "5:4" (Landscape (5:4)), "16:9" (Widescreen (16:9)), "9:16" (Vertical (9:16)), "21:9" (Ultrawide (21:9)), "4:1" (Wide (4:1)), "1:4" (Tall (1:4)), "8:1" (Very wide (8:1)), "1:8" (Very tall (1:8))

- **`output_resolution`** (`string`, _optional_):
  Output resolution
  Output detail level. Also determines the price tier (1K/2K = $0.15, 4K = $0.25).
  - Default: `"4K"`
  - Options: "1K" (1K), "2K" (2K), "4K" (4K (highest detail))

- **`output_format`** (`string`, _optional_):
  Output format
  File format of the generated image.
  - Default: `"jpg"`
  - Options: "jpg" (JPG), "png" (PNG)

- **`response_modalities`** (`string`, _optional_):
  Response format
  Return only the generated image or include a text response alongside it.
  - Default: `"TEXT_AND_IMAGE"`
  - Options: "TEXT_AND_IMAGE" (Text and image), "IMAGE" (Image only)

- **`seed`** (`integer`, _optional_):
  Seed
  Optional seed for reproducible results. Leave blank for a random seed on every request.
  - Default: `123456789`
  - Range: 0 to 999999999999999

- **`safety_tolerance`** (`integer`, _optional_):
  Safety tolerance
  Content-filter strictness, 1 (strictest) to 6 (most permissive). Leave blank for the default.
  - Default: `4`
  - Range: 1 to 6

- **`web_search`** (`boolean`, _optional_):
  Web search
  Ground generation in real-time web data. Recommended for news-related prompts. Also affects price.
  - Default: `false`


**Required Parameters Example**:

```json
{
  "prompt": "Create a multi-panel GTA-style comic page featuring one woman and one man as office coworkers working on a new product launch. Use bold outlines, dramatic GTA loading-screen shading, expressive faces, modern tech office backgrounds.\n\nPanel 1 — Narration:\nThe woman enters the office early, holding a laptop. She looks stressed but determined.\nText: ‘Launch day. Weeks of work… all coming down to this.’\n\nPanel 2 — Dialogue:\nMan appears behind her with a calm, confident smile.\nMan: ‘You’re here early. Ready for the big ship?’\nWoman: ‘Trying to be.’\n\nPanel 3 — Action:\nBoth sit at a desk with screens showing graphs, bugs, and a countdown timer.\nText: ‘One critical bug left… time running out.’\n\nPanel 4 — Dialogue:\nClose-up of the man pointing at the screen.\nMan: ‘Wait—I see it. We can fix this.’\nWoman: ‘Let’s do it.’\n\nPanel 5 — Action:\nBoth typing fast, dramatic GTA-style lighting, code streaming across screens.\nText: ‘Two minds. One mission.’\n\nPanel 6 — Victory:\nThe laptop shows PRODUCT SHIPPED — SUCCESS. Both cheer and laugh in relief.\nWoman: ‘We did it!’\nMan: ‘Told you we’d make it.’\n\nPanel 7 — Narration:\nFinal shot: team walking out of the office at night, city lights behind them.\nText: ‘In tech, wins aren’t solo. They’re shared.’\n\nArt style: GTA loading-screen style, bold color blocks, high contrast shadows, confident comic composition, cinematic frames."
}
```


**Full Example**:

```json
{
  "prompt": "Create a multi-panel GTA-style comic page featuring one woman and one man as office coworkers working on a new product launch. Use bold outlines, dramatic GTA loading-screen shading, expressive faces, modern tech office backgrounds.\n\nPanel 1 — Narration:\nThe woman enters the office early, holding a laptop. She looks stressed but determined.\nText: ‘Launch day. Weeks of work… all coming down to this.’\n\nPanel 2 — Dialogue:\nMan appears behind her with a calm, confident smile.\nMan: ‘You’re here early. Ready for the big ship?’\nWoman: ‘Trying to be.’\n\nPanel 3 — Action:\nBoth sit at a desk with screens showing graphs, bugs, and a countdown timer.\nText: ‘One critical bug left… time running out.’\n\nPanel 4 — Dialogue:\nClose-up of the man pointing at the screen.\nMan: ‘Wait—I see it. We can fix this.’\nWoman: ‘Let’s do it.’\n\nPanel 5 — Action:\nBoth typing fast, dramatic GTA-style lighting, code streaming across screens.\nText: ‘Two minds. One mission.’\n\nPanel 6 — Victory:\nThe laptop shows PRODUCT SHIPPED — SUCCESS. Both cheer and laugh in relief.\nWoman: ‘We did it!’\nMan: ‘Told you we’d make it.’\n\nPanel 7 — Narration:\nFinal shot: team walking out of the office at night, city lights behind them.\nText: ‘In tech, wins aren’t solo. They’re shared.’\n\nArt style: GTA loading-screen style, bold color blocks, high contrast shadows, confident comic composition, cinematic frames.",
  "image_urls": [
    "https://segmind-inference-inputs.s3.amazonaws.com/ad93498e-3370-432b-8dd7-bc3f4aa1b39a-black-man-image.jpeg",
    "https://segmind-inference-inputs.s3.amazonaws.com/8bdc63b0-79ed-4369-a4af-e7284f5bde33-image (86).png"
  ],
  "system_prompt": "Keep the composition polished, cheerful, and suitable for a product campaign.",
  "aspect_ratio": "1:1",
  "output_resolution": "4K",
  "output_format": "jpg",
  "response_modalities": "TEXT_AND_IMAGE",
  "seed": 123456789,
  "safety_tolerance": 4,
  "web_search": false
}
```


### Output Schema

The API returns a synchronous response based on the model type:

**For Image/Video/Audio Models**:
- Response contains binary data (image/png, video/mp4, audio/mp3)
- Content-Type header indicates the media type
- Save the response body directly to a file

**For Text Models**:
- Response is JSON with the generated text
- Structure varies by model

**HTTP Response Codes**:
- **200 - OK**: Request successful, output in response body
- **400 - Bad Request**: Invalid parameters
- **401 - Unauthorized**: Invalid or missing API key
- **404 - Not Found**: Model not found
- **406 - Not Acceptable**: Insufficient credits
- **429 - Too Many Requests**: Rate limit exceeded
- **500 - Server Error**: Internal server error


## Usage Examples

### cURL

```bash
curl -X POST "https://api.segmind.com/v1/nano-banana-pro" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "prompt": "Create a multi-panel GTA-style comic page featuring one woman and one man as office coworkers working on a new product launch. Use bold outlines, dramatic GTA loading-screen shading, expressive faces, modern tech office backgrounds.\n\nPanel 1 — Narration:\nThe woman enters the office early, holding a laptop. She looks stressed but determined.\nText: ‘Launch day. Weeks of work… all coming down to this.’\n\nPanel 2 — Dialogue:\nMan appears behind her with a calm, confident smile.\nMan: ‘You’re here early. Ready for the big ship?’\nWoman: ‘Trying to be.’\n\nPanel 3 — Action:\nBoth sit at a desk with screens showing graphs, bugs, and a countdown timer.\nText: ‘One critical bug left… time running out.’\n\nPanel 4 — Dialogue:\nClose-up of the man pointing at the screen.\nMan: ‘Wait—I see it. We can fix this.’\nWoman: ‘Let’s do it.’\n\nPanel 5 — Action:\nBoth typing fast, dramatic GTA-style lighting, code streaming across screens.\nText: ‘Two minds. One mission.’\n\nPanel 6 — Victory:\nThe laptop shows PRODUCT SHIPPED — SUCCESS. Both cheer and laugh in relief.\nWoman: ‘We did it!’\nMan: ‘Told you we’d make it.’\n\nPanel 7 — Narration:\nFinal shot: team walking out of the office at night, city lights behind them.\nText: ‘In tech, wins aren’t solo. They’re shared.’\n\nArt style: GTA loading-screen style, bold color blocks, high contrast shadows, confident comic composition, cinematic frames.",
  "image_urls": [
    "https://segmind-inference-inputs.s3.amazonaws.com/ad93498e-3370-432b-8dd7-bc3f4aa1b39a-black-man-image.jpeg",
    "https://segmind-inference-inputs.s3.amazonaws.com/8bdc63b0-79ed-4369-a4af-e7284f5bde33-image (86).png"
  ],
  "system_prompt": "Keep the composition polished, cheerful, and suitable for a product campaign.",
  "aspect_ratio": "1:1",
  "output_resolution": "4K",
  "output_format": "jpg",
  "response_modalities": "TEXT_AND_IMAGE",
  "seed": 123456789,
  "safety_tolerance": 4,
  "web_search": false
}'
```

### Python

```python
import requests
import json

api_key = "YOUR_API_KEY"
url = "https://api.segmind.com/v1/nano-banana-pro"

data = {
  "prompt": "Create a multi-panel GTA-style comic page featuring one woman and one man as office coworkers working on a new product launch. Use bold outlines, dramatic GTA loading-screen shading, expressive faces, modern tech office backgrounds.\n\nPanel 1 — Narration:\nThe woman enters the office early, holding a laptop. She looks stressed but determined.\nText: ‘Launch day. Weeks of work… all coming down to this.’\n\nPanel 2 — Dialogue:\nMan appears behind her with a calm, confident smile.\nMan: ‘You’re here early. Ready for the big ship?’\nWoman: ‘Trying to be.’\n\nPanel 3 — Action:\nBoth sit at a desk with screens showing graphs, bugs, and a countdown timer.\nText: ‘One critical bug left… time running out.’\n\nPanel 4 — Dialogue:\nClose-up of the man pointing at the screen.\nMan: ‘Wait—I see it. We can fix this.’\nWoman: ‘Let’s do it.’\n\nPanel 5 — Action:\nBoth typing fast, dramatic GTA-style lighting, code streaming across screens.\nText: ‘Two minds. One mission.’\n\nPanel 6 — Victory:\nThe laptop shows PRODUCT SHIPPED — SUCCESS. Both cheer and laugh in relief.\nWoman: ‘We did it!’\nMan: ‘Told you we’d make it.’\n\nPanel 7 — Narration:\nFinal shot: team walking out of the office at night, city lights behind them.\nText: ‘In tech, wins aren’t solo. They’re shared.’\n\nArt style: GTA loading-screen style, bold color blocks, high contrast shadows, confident comic composition, cinematic frames.",
  "image_urls": [
    "https://segmind-inference-inputs.s3.amazonaws.com/ad93498e-3370-432b-8dd7-bc3f4aa1b39a-black-man-image.jpeg",
    "https://segmind-inference-inputs.s3.amazonaws.com/8bdc63b0-79ed-4369-a4af-e7284f5bde33-image (86).png"
  ],
  "system_prompt": "Keep the composition polished, cheerful, and suitable for a product campaign.",
  "aspect_ratio": "1:1",
  "output_resolution": "4K",
  "output_format": "jpg",
  "response_modalities": "TEXT_AND_IMAGE",
  "seed": 123456789,
  "safety_tolerance": 4,
  "web_search": false
}

response = requests.post(
    url,
    json=data,
    headers={
        'x-api-key': api_key,
        'Content-Type': 'application/json'
    }
)

if response.status_code == 200:
    # For image/video/audio models, response.content contains the binary data
    with open('output.png', 'wb') as f:
        f.write(response.content)
    print('Generation complete, saved to output.png')
else:
    print(f"Error: {response.status_code}")
    print(response.text)
```

### JavaScript

```javascript
const apiKey = 'YOUR_API_KEY';
const url = 'https://api.segmind.com/v1/nano-banana-pro';

const data = {
  "prompt": "Create a multi-panel GTA-style comic page featuring one woman and one man as office coworkers working on a new product launch. Use bold outlines, dramatic GTA loading-screen shading, expressive faces, modern tech office backgrounds.\n\nPanel 1 — Narration:\nThe woman enters the office early, holding a laptop. She looks stressed but determined.\nText: ‘Launch day. Weeks of work… all coming down to this.’\n\nPanel 2 — Dialogue:\nMan appears behind her with a calm, confident smile.\nMan: ‘You’re here early. Ready for the big ship?’\nWoman: ‘Trying to be.’\n\nPanel 3 — Action:\nBoth sit at a desk with screens showing graphs, bugs, and a countdown timer.\nText: ‘One critical bug left… time running out.’\n\nPanel 4 — Dialogue:\nClose-up of the man pointing at the screen.\nMan: ‘Wait—I see it. We can fix this.’\nWoman: ‘Let’s do it.’\n\nPanel 5 — Action:\nBoth typing fast, dramatic GTA-style lighting, code streaming across screens.\nText: ‘Two minds. One mission.’\n\nPanel 6 — Victory:\nThe laptop shows PRODUCT SHIPPED — SUCCESS. Both cheer and laugh in relief.\nWoman: ‘We did it!’\nMan: ‘Told you we’d make it.’\n\nPanel 7 — Narration:\nFinal shot: team walking out of the office at night, city lights behind them.\nText: ‘In tech, wins aren’t solo. They’re shared.’\n\nArt style: GTA loading-screen style, bold color blocks, high contrast shadows, confident comic composition, cinematic frames.",
  "image_urls": [
    "https://segmind-inference-inputs.s3.amazonaws.com/ad93498e-3370-432b-8dd7-bc3f4aa1b39a-black-man-image.jpeg",
    "https://segmind-inference-inputs.s3.amazonaws.com/8bdc63b0-79ed-4369-a4af-e7284f5bde33-image (86).png"
  ],
  "system_prompt": "Keep the composition polished, cheerful, and suitable for a product campaign.",
  "aspect_ratio": "1:1",
  "output_resolution": "4K",
  "output_format": "jpg",
  "response_modalities": "TEXT_AND_IMAGE",
  "seed": 123456789,
  "safety_tolerance": 4,
  "web_search": false
};

const response = await fetch(url, {
  method: 'POST',
  headers: {
    'x-api-key': apiKey,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify(data),
});

if (response.ok) {
  // For image/video/audio models, response contains binary data
  const blob = await response.blob();
  const downloadUrl = URL.createObjectURL(blob);

  // Create download link
  const a = document.createElement('a');
  a.href = downloadUrl;
  a.download = 'output.png';
  a.click();

  console.log('Generation complete');
}
```


## Additional Resources

### Documentation

- [Model Playground](https://www.segmind.com/models/nano-banana-pro)
- [API Documentation](https://www.segmind.com/models/nano-banana-pro/api)
- [Pricing Details](https://www.segmind.com/models/nano-banana-pro/pricing)
- [Platform Documentation](https://docs.segmind.com/)

### Tags

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