# Minimax Image Subject Reference

> Generate images from text and a reference image using MiniMax Image-01 for consistent character appearance.


## Overview

- **Endpoint**: `https://fal.run/fal-ai/minimax/image-01/subject-reference`
- **Model ID**: `fal-ai/minimax/image-01/subject-reference`
- **Category**: image-to-image
- **Kind**: inference
**Tags**: stylized, transform



## Pricing

- **Price**: $0.01 per images

For more details, see [fal.ai pricing](https://fal.ai/pricing).

## API Information

This model can be used via our HTTP API or more conveniently via our client libraries.
See the input and output schema below, as well as the usage examples.


### Input Schema

The API accepts the following input parameters:


- **`prompt`** (`string`, _required_):
  Text prompt for image generation (max 1500 characters)
  - Examples: "A beautiful woman with a crown on her head."

- **`image_url`** (`string`, _required_):
  URL of the subject reference image to use for consistent character appearance
  - Examples: "https://v3.fal.media/files/koala/hQwSnkWm8FDjou5SwLNuX_c223cf93-0036-4b18-bbea-bf6d0da7f210.png"

- **`aspect_ratio`** (`AspectRatioEnum`, _optional_):
  Aspect ratio of the generated image Default value: `"1:1"`
  - Default: `"1:1"`
  - Options: `"1:1"`, `"16:9"`, `"4:3"`, `"3:2"`, `"2:3"`, `"3:4"`, `"9:16"`, `"21:9"`

- **`num_images`** (`integer`, _optional_):
  Number of images to generate (1-9) Default value: `1`
  - Default: `1`
  - Range: `1` to `9`

- **`prompt_optimizer`** (`boolean`, _optional_):
  Whether to enable automatic prompt optimization
  - Default: `false`



**Required Parameters Example**:

```json
{
  "prompt": "A beautiful woman with a crown on her head.",
  "image_url": "https://v3.fal.media/files/koala/hQwSnkWm8FDjou5SwLNuX_c223cf93-0036-4b18-bbea-bf6d0da7f210.png"
}
```

**Full Example**:

```json
{
  "prompt": "A beautiful woman with a crown on her head.",
  "image_url": "https://v3.fal.media/files/koala/hQwSnkWm8FDjou5SwLNuX_c223cf93-0036-4b18-bbea-bf6d0da7f210.png",
  "aspect_ratio": "1:1",
  "num_images": 1
}
```


### Output Schema

The API returns the following output format:

- **`images`** (`list<File>`, _required_):
  Generated images
  - Array of File
  - Examples: [{"file_size":239709,"file_name":"image.jpg","content_type":"image/jpeg","url":"https://v3.fal.media/files/lion/1bfHvTwZGzK59EYAi2OG7_image.jpg"}]



**Example Response**:

```json
{
  "images": [
    {
      "file_size": 239709,
      "file_name": "image.jpg",
      "content_type": "image/jpeg",
      "url": "https://v3.fal.media/files/lion/1bfHvTwZGzK59EYAi2OG7_image.jpg"
    }
  ]
}
```


## Usage Examples

### cURL

```bash
curl --request POST \
  --url https://fal.run/fal-ai/minimax/image-01/subject-reference \
  --header "Authorization: Key $FAL_KEY" \
  --header "Content-Type: application/json" \
  --data '{
     "prompt": "A beautiful woman with a crown on her head.",
     "image_url": "https://v3.fal.media/files/koala/hQwSnkWm8FDjou5SwLNuX_c223cf93-0036-4b18-bbea-bf6d0da7f210.png"
   }'
```

### Python

Ensure you have the Python client installed:

```bash
pip install fal-client
```

Then use the API client to make requests:

```python
import fal_client

def on_queue_update(update):
    if isinstance(update, fal_client.InProgress):
        for log in update.logs:
           print(log["message"])

result = fal_client.subscribe(
    "fal-ai/minimax/image-01/subject-reference",
    arguments={
        "prompt": "A beautiful woman with a crown on her head.",
        "image_url": "https://v3.fal.media/files/koala/hQwSnkWm8FDjou5SwLNuX_c223cf93-0036-4b18-bbea-bf6d0da7f210.png"
    },
    with_logs=True,
    on_queue_update=on_queue_update,
)
print(result)
```

### JavaScript

Ensure you have the JavaScript client installed:

```bash
npm install --save @fal-ai/client
```

Then use the API client to make requests:

```javascript
import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/minimax/image-01/subject-reference", {
  input: {
    prompt: "A beautiful woman with a crown on her head.",
    image_url: "https://v3.fal.media/files/koala/hQwSnkWm8FDjou5SwLNuX_c223cf93-0036-4b18-bbea-bf6d0da7f210.png"
  },
  logs: true,
  onQueueUpdate: (update) => {
    if (update.status === "IN_PROGRESS") {
      update.logs.map((log) => log.message).forEach(console.log);
    }
  },
});
console.log(result.data);
console.log(result.requestId);
```


## Additional Resources

### Documentation

- [Model Playground](https://fal.ai/models/fal-ai/minimax/image-01/subject-reference)
- [API Documentation](https://fal.ai/models/fal-ai/minimax/image-01/subject-reference/api)
- [OpenAPI Schema](https://fal.ai/api/openapi/queue/openapi.json?endpoint_id=fal-ai/minimax/image-01/subject-reference)

### fal.ai Platform

- [Platform Documentation](https://docs.fal.ai)
- [Python Client](https://docs.fal.ai/clients/python)
- [JavaScript Client](https://docs.fal.ai/clients/javascript)