Aider lets you pair program with LLMs to start a new project or build on your existing codebase.
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.
Aider makes a map of your entire codebase, which helps it work well in larger projects.
Aider works with most popular programming languages: python, javascript, rust, ruby, go, cpp, php, html, css, and dozens more.
Aider automatically commits changes with sensible commit messages. Use familiar git tools to easily diff, manage and undo AI changes.
Use aider from within your favorite IDE or editor. Ask for changes by adding comments to your code and aider will get to work.
Add images and web pages to the chat to provide visual context, screenshots, reference docs, etc.
Speak with aider about your code! Request new features, test cases or bug fixes using your voice and let aider implement the changes.
Automatically lint and test your code every time aider makes changes. Aider can fix problems detected by your linters and test suites.
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.
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>Want more details?
Best agent for actual dev work in existing codebases.
Aider... blows everything else out of the water hands down, there's no competition whatsoever.
thanks to aider, i have started and finished three personal projects within the last two days
Hands down, this is the best AI coding assistant tool so far.
Been using aider as my daily driver for over a year ... I absolutely love the tool, like beyond words.
Aider is amazing, coupled with Sonnet 3.5 it's quite mind blowing.
Everything you need to get started and make the most of Aider
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