langchain/docs/versioned_docs/version-0.2.x/integrations/providers/ctranslate2.mdx

# CTranslate2

>[CTranslate2](https://opennmt.net/CTranslate2/quickstart.html) is a C++ and Python library 
> for efficient inference with Transformer models.
>
>The project implements a custom runtime that applies many performance optimization
> techniques such as weights quantization, layers fusion, batch reordering, etc., 
> to accelerate and reduce the memory usage of Transformer models on CPU and GPU.
>
>A full list of features and supported models is included in the 
> [project’s repository](https://opennmt.net/CTranslate2/guides/transformers.html). 
> To start, please check out the official [quickstart guide](https://opennmt.net/CTranslate2/quickstart.html).


## Installation and Setup

Install the Python package:

```bash
pip install ctranslate2
```


## LLMs

See a [usage example](/docs/integrations/llms/ctranslate2).

```python
from langchain_community.llms import CTranslate2
```