> Source URL: /unit-3/resources/opencode.guide
# OpenCode Guide

OpenCode is a free, open-source AI coding agent. It is available as a terminal app, a desktop app (beta), and an IDE extension. It supports 75+ LLM providers through Models.dev, and you can log in with an existing GitHub Copilot or ChatGPT account to use it at no extra cost.

## Getting Started

Install using any of these methods:

```bash
curl -fsSL https://opencode.ai/install | bash
```

Or with a package manager:

```bash
# npm
npm install -g opencode

# Homebrew
brew install opencode
```

Then run `opencode` in any project directory to start a session.

A desktop app is also available in beta for macOS, Windows, and Linux. Download it from [opencode.ai](https://opencode.ai/).

## Using Your Existing Accounts

One of OpenCode's best features for students: you can log in with accounts you may already have.

- **GitHub Copilot:** If you have the free Copilot Student plan, you can use it with OpenCode.
- **ChatGPT Plus/Pro:** If you have a ChatGPT subscription, you can log in with your OpenAI account.
- **Any API key:** Bring your own API key from Anthropic, OpenAI, Google, and 75+ other providers.

## Pricing

OpenCode itself is free and open source (MIT license). You only pay for the AI models you use, and there are free options:

- **Free models:** OpenCode includes some free model options and works with local models through Ollama.
- **Zen:** A curated set of models optimized for coding agents. Pay-as-you-go with no markup on model costs.
- **Bring your own key:** Use any API key from any provider.

## Key Features

- **LSP integration:** Automatically loads the right language servers for the LLM
- **Multi-session:** Run multiple agents in parallel on the same project
- **Share links:** Share a link to any session for reference or debugging
- **Privacy-first:** Does not store your code or context data

## Resources

- [OpenCode Documentation](https://opencode.ai/docs/)
- [OpenCode on GitHub](https://github.com/opencode-ai/opencode)


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## Backlinks

The following sources link to this document:

- [OpenCode](/unit-3/resources/claude-code.guide.llm.md)
- [OpenCode Guide](/unit-3/resources/agents-comparison.guide.llm.md)