# Flux Kontext Pro

> FLUX.1 Kontext Pro transforms text prompts into high-quality, customized images with remarkable efficiency and precision.


## Overview

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

- **Average Cost**: $0.049999999999999996


## Pricing

- **Cost**: $0.050 per generation

## 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:

- **`seed`** (`integer | null`, _optional_):
  Seed
  Sets the random seed for generation consistency. Use specific numbers for repeatable results.

- **`prompt`** (`string`, _required_):
  Prompt
  Describes the desired output or edit. To create lively imagery, try instructions like 'Turn this into a cyberpunk cityscape.'

- **`input_image`** (`File (URL)`, _optional_):
  Input image
  Image to edit or guide the generation. Use high-resolution images for the best quality results.
  - Default: `"https://segmind-resources.s3.amazonaws.com/input/e9150752-b054-445c-a988-c13c6038dfa9-kontext-pro-ip.webp"`

- **`aspect_ratio`** (`string | null`, _optional_):
  Aspect ratio
  Defines the image's width-to-height ratio. Choose '16:9' for widescreen or '1:1' for square images.
  - Default: `"match_input_image"`
  - Options: "match_input_image" (match_input_image), "1:1" (1:1), "16:9" (16:9), "9:16" (9:16), "4:3" (4:3), "3:4" (3:4), "3:2" (3:2), "2:3" (2:3), "4:5" (4:5), "5:4" (5:4), "21:9" (21:9), "9:21" (9:21), "2:1" (2:1), "1:2" (1:2)

- **`output_format`** (`string | null`, _optional_):
  Output format
  Output format for the generated image.
  - Default: `"png"`
  - Options: "jpg" (jpg), "png" (png)

- **`safety_tolerance`** (`integer | null`, _optional_):
  Safety tolerance
  Safety tolerance, 1 is most strict and 6 is most permissive. 2 is currently the maximum allowed when input images are used.
  - Default: `2`


**Required Parameters Example**:

```json
{
  "prompt": "make this a real photograph"
}
```


**Full Example**:

```json
{
  "seed": null,
  "prompt": "make this a real photograph",
  "input_image": "https://segmind-resources.s3.amazonaws.com/input/e9150752-b054-445c-a988-c13c6038dfa9-kontext-pro-ip.webp",
  "aspect_ratio": "match_input_image",
  "output_format": "png",
  "safety_tolerance": 6
}
```


### 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/flux-kontext-pro" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "seed": null,
  "prompt": "make this a real photograph",
  "input_image": "https://segmind-resources.s3.amazonaws.com/input/e9150752-b054-445c-a988-c13c6038dfa9-kontext-pro-ip.webp",
  "aspect_ratio": "match_input_image",
  "output_format": "png",
  "safety_tolerance": 6
}'
```

### Python

```python
import requests
import json

api_key = "YOUR_API_KEY"
url = "https://api.segmind.com/v1/flux-kontext-pro"

data = {
  "seed": null,
  "prompt": "make this a real photograph",
  "input_image": "https://segmind-resources.s3.amazonaws.com/input/e9150752-b054-445c-a988-c13c6038dfa9-kontext-pro-ip.webp",
  "aspect_ratio": "match_input_image",
  "output_format": "png",
  "safety_tolerance": 6
}

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/flux-kontext-pro';

const data = {
  "seed": null,
  "prompt": "make this a real photograph",
  "input_image": "https://segmind-resources.s3.amazonaws.com/input/e9150752-b054-445c-a988-c13c6038dfa9-kontext-pro-ip.webp",
  "aspect_ratio": "match_input_image",
  "output_format": "png",
  "safety_tolerance": 6
};

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/flux-kontext-pro)
- [API Documentation](https://www.segmind.com/models/flux-kontext-pro/api)
- [Pricing Details](https://www.segmind.com/models/flux-kontext-pro/pricing)
- [Platform Documentation](https://docs.segmind.com/)

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