---
sidebar_label: Ollama
---

# ChatOllama

[Ollama](https://ollama.ai/) allows you to run open-source large language models, such as Llama 2, locally.

Ollama bundles model weights, configuration, and data into a single package, defined by a Modelfile. It optimizes setup and configuration details, including GPU usage.

This example goes over how to use LangChain to interact with an Ollama-run Llama 2 7b instance as a chat model.
For a complete list of supported models and model variants, see the [Ollama model library](https://github.com/jmorganca/ollama#model-library).

## Setup

Follow [these instructions](https://github.com/jmorganca/ollama) to set up and run a local Ollama instance.

## Usage

import CodeBlock from "@theme/CodeBlock";
import OllamaExample from "@examples/models/chat/integration_ollama.ts";

<CodeBlock language="typescript">{OllamaExample}</CodeBlock>