# Rig
Rig is a Rust library for building LLM-powered applications that focuses on ergonomics and modularity.
More information about this crate can be found in the [crate documentation](https://docs.rs/rig-core/latest/rig/).
## Table of contents
- [High-level features](#high-level-features)
- [Installation](#)
- [Simple Example](#simple-example)
- [Integrations](#integrations)
## High-level features
- Full support for LLM completion and embedding workflows
- Simple but powerful common abstractions over LLM providers (e.g. OpenAI, Cohere) and vector stores (e.g. MongoDB, in-memory)
- Integrate LLMs in your app with minimal boilerplate
## Installation
```bash
cargo add rig-core
```
## Simple example:
```rust
use rig::{completion::Prompt, providers::openai};
#[tokio::main]
async fn main() {
// Create OpenAI client and model
// This requires the `OPENAI_API_KEY` environment variable to be set.
let openai_client = openai::Client::from_env();
let gpt4 = openai_client.model("gpt-4").build();
// Prompt the model and print its response
let response = gpt4
.prompt("Who are you?")
.await
.expect("Failed to prompt GPT-4");
println!("GPT-4: {response}");
}
```
Note using `#[tokio::main]` requires you enable tokio's `macros` and `rt-multi-thread` features
or just `full` to enable all features (`cargo add tokio --features macros,rt-multi-thread`).
## Integrations
Rig supports the following LLM providers natively:
- OpenAI
- Cohere
Additionally, Rig currently has the following integration sub-libraries:
- MongoDB vector store: `rig-mongodb`