AI pair programming in your terminal

Aider lets you pair program with LLMs to start a new project or build on your existing codebase.

Features

Cloud and local LLMs
Aider works best with Claude 3.7 Sonnet, DeepSeek R1 & Chat V3, OpenAI o1, o3-mini & GPT-4o, but can connect to almost any LLM, including local models.

Maps your codebase
Aider makes a map of your entire codebase, which helps it work well in larger projects.

100+ code languages
Aider works with most popular programming languages: python, javascript, rust, ruby, go, cpp, php, html, css, and dozens more.

Git integration
Aider automatically commits changes with sensible commit messages. Use familiar git tools to easily diff, manage and undo AI changes.

In your IDE
Use aider from within your favorite IDE or editor. Ask for changes by adding comments to your code and aider will get to work.

Images & web pages
Add images and web pages to the chat to provide visual context, screenshots, reference docs, etc.

Voice-to-code
Speak with aider about your code! Request new features, test cases or bug fixes using your voice and let aider implement the changes.

Linting & testing
Automatically lint and test your code every time aider makes changes. Aider can fix problems detected by your linters and test suites.

Copy/paste to web chat
Aider works best with LLM APIs, but it can also work an LLM via its web chat interface. Aider streamlines copy/pasting code back and forth with a browser.

Getting Started

python -m pip install aider-install
aider-install

# Change directory into your codebase
cd /to/your/project

# DeepSeek
aider --model deepseek --api-key deepseek=<key>

# Claude 3.7 Sonnet
aider --model sonnet --api-key anthropic=<key>

# o3-mini
aider --model o3-mini --api-key openai=<key>

Kind Words From Users

My life has changed... Aider... It's going to rock your world.

— Eric S. Raymond on X

What an amazing tool. It's incredible.

— valyagolev on GitHub

It's really like having your senior developer live right in your Git repo - truly amazing!

— rappster on GitHub

Aider is the precision tool of LLM code gen... Minimal, thoughtful and capable of surgical changes ... while keeping the developer in control.

— Reilly Sweetland on X

Aider is such an astounding thing!

— cgrothaus on GitHub

thanks to aider, i have started and finished three personal projects within the last two days

— joseph stalzyn on X

More Information

Documentation

Everything you need to get started and make the most of Aider

  • Installation Guide
  • Usage Guide
  • Tutorial Videos
  • Connecting to LLMs
  • Configuration Options
  • Troubleshooting
  • FAQ

Community & Resources

Connect with other users and find additional resources

  • LLM Leaderboards
  • GitHub Repository
  • Discord Community
  • Release notes
  • Blog