# Facebook - Meta

>[Meta Platforms, Inc.](https://www.facebook.com/), doing business as `Meta`, formerly 
> named `Facebook, Inc.`, and `TheFacebook, Inc.`, is an American multinational technology 
> conglomerate. The company owns and operates `Facebook`, `Instagram`, `Threads`, 
> and `WhatsApp`, among other products and services.
 
## Embedding models

### LASER

>[LASER](https://github.com/facebookresearch/LASER) is a Python library developed by 
> the `Meta AI Research` team and used for 
> creating multilingual sentence embeddings for 
> [over 147 languages as of 2/25/2024](https://github.com/facebookresearch/flores/blob/main/flores200/README.md#languages-in-flores-200) 

```bash
pip install laser_encoders
```

See a [usage example](/docs/integrations/text_embedding/laser).

```python
from langchain_community.embeddings.laser import LaserEmbeddings
```

## Document loaders

### Facebook Messenger

>[Messenger](https://en.wikipedia.org/wiki/Messenger_(software)) is an instant messaging app and 
> platform developed by `Meta Platforms`. Originally developed as `Facebook Chat` in 2008, the company revamped its
> messaging service in 2010.

See a [usage example](/docs/integrations/document_loaders/facebook_chat).

```python
from langchain_community.document_loaders import FacebookChatLoader
```

## Vector stores

### Facebook Faiss

>[Facebook AI Similarity Search (Faiss)](https://engineering.fb.com/2017/03/29/data-infrastructure/faiss-a-library-for-efficient-similarity-search/) 
> is a library for efficient similarity search and clustering of dense vectors. It contains algorithms that 
> search in sets of vectors of any size, up to ones that possibly do not fit in RAM. It also contains supporting 
> code for evaluation and parameter tuning.

[Faiss documentation](https://faiss.ai/).

We need to install `faiss` python package.

```bash
pip install faiss-gpu # For CUDA 7.5+ supported GPU's.
```

OR

```bash
pip install faiss-cpu # For CPU Installation
```

See a [usage example](/docs/integrations/vectorstores/faiss).

```python
from langchain_community.vectorstores import FAISS
```

## Chat loaders

### Facebook Messenger

>[Messenger](https://en.wikipedia.org/wiki/Messenger_(software)) is an instant messaging app and 
> platform developed by `Meta Platforms`. Originally developed as `Facebook Chat` in 2008, the company revamped its
> messaging service in 2010.

See a [usage example](/docs/integrations/chat_loaders/facebook).

```python
from langchain_community.chat_loaders.facebook_messenger import (
    FolderFacebookMessengerChatLoader,
    SingleFileFacebookMessengerChatLoader,
)
```

### Facebook WhatsApp

See a [usage example](/docs/integrations/chat_loaders/whatsapp).

```python
from langchain_community.chat_loaders.whatsapp import WhatsAppChatLoader
```
