Aider is AI pair programming in your terminal

Aider lets you pair program with LLMs, to edit code in your local git repository. Start a new project or work with an existing git repo. Aider can connect to almost any LLM. and works best with GPT-4o, Claude 3.5 Sonnet, Claude 3 Opus and DeepSeek Coder V2.

Getting started

You can get started quickly like this:

$ pip install aider-chat

# Change directory into a git repo
$ cd /to/your/git/repo

# Work with Claude 3.5 Sonnet on your repo
$ export ANTHROPIC_API_KEY=your-key-goes-here
$ aider

# Work with GPT-4o on your repo
$ export OPENAI_API_KEY=your-key-goes-here
$ aider

See the installation instructions and other documentation for more details.

Features

Run aider with the files you want to edit: aider <file1> <file2> ...
Ask for changes:
- Add new features or test cases.
- Describe a bug.
- Paste in an error message or or GitHub issue URL.
- Refactor code.
- Update docs.
Aider will edit your files to complete your request.
Aider automatically git commits changes with a sensible commit message.
Aider works with most popular languages: python, javascript, typescript, php, html, css, and more...
Aider works best with GPT-4o and Claude 3 Opus and can connect to almost any LLM.
Aider can edit multiple files at once for complex requests.
Aider uses a map of your entire git repo, which helps it work well in larger codebases.
Edit files in your editor while chatting with aider, and it will always use the latest version. Pair program with AI.
Add images to the chat (GPT-4o, Claude 3.5 Sonnet, etc).
Add URLs to the chat and aider will read their content.
Code with your voice.

Top tier performance

Aider has the one of the top scores on SWE Bench. SWE Bench is a challenging software engineering benchmark where aider solved real GitHub issues from popular open source projects like django, scikitlearn, matplotlib, etc.

More info

Kind words from users