<a id="camel.models.vllm_model"></a>

<a id="camel.models.vllm_model.VLLMModel"></a>

## VLLMModel

```python
class VLLMModel(OpenAICompatibleModel):
```

vLLM service interface.

**Parameters:**

- **model_type** (Union[ModelType, str]): Model for which a backend is created.
- **model_config_dict** (Optional[Dict[str, Any]], optional): A dictionary that will be fed into:obj:`openai.ChatCompletion.create()`. If :obj:`None`, :obj:`VLLMConfig().as_dict()` will be used. (default: :obj:`None`)
- **api_key** (Optional[str], optional): The API key for authenticating with the model service. vLLM doesn't need API key, it would be ignored if set. (default: :obj:`None`)
- **url** (Optional[str], optional): The url to the model service. If not provided, :obj:`"http://localhost:8000/v1"` will be used. (default: :obj:`None`)
- **token_counter** (Optional[BaseTokenCounter], optional): Token counter to use for the model. If not provided, :obj:`OpenAITokenCounter( ModelType.GPT_4O_MINI)` will be used. (default: :obj:`None`)
- **timeout** (Optional[float], optional): The timeout value in seconds for API calls. If not provided, will fall back to the MODEL_TIMEOUT environment variable or default to 180 seconds. (default: :obj:`None`)
- **max_retries** (int, optional): Maximum number of retries for API calls. (default: :obj:`3`) **kwargs (Any): Additional arguments to pass to the client initialization.
- **References**:
- **https**: //docs.vllm.ai/en/latest/serving/openai_compatible_server.html

<a id="camel.models.vllm_model.VLLMModel.__init__"></a>

### __init__

```python
def __init__(
    self,
    model_type: Union[ModelType, str],
    model_config_dict: Optional[Dict[str, Any]] = None,
    api_key: Optional[str] = None,
    url: Optional[str] = None,
    token_counter: Optional[BaseTokenCounter] = None,
    timeout: Optional[float] = None,
    max_retries: int = 3,
    **kwargs: Any
):
```

<a id="camel.models.vllm_model.VLLMModel._start_server"></a>

### _start_server

```python
def _start_server(self):
```

Starts the vllm server in a subprocess.