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aider is AI pair programming in your terminal
https://aider.chat/
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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 code base. Aider works best with Claude 3.7 Sonnet, DeepSeek R1 & Chat V3, OpenAI o1, o3-mini & GPT-4o. Aider can connect to almost any LLM, including local models.
Getting started
If you already have python 3.8-3.13 installed, you can get started quickly like this:
python -m pip install aider-install
aider-install
# Change directory into your code base
cd /to/your/project
# Work with DeepSeek via DeepSeek's API
aider --model deepseek --api-key deepseek=your-key-goes-here
# Work with Claude 3.7 Sonnet via Anthropic's API
aider --model sonnet --api-key anthropic=your-key-goes-here
# Work with GPT-4o via OpenAI's API
aider --model gpt-4o --api-key openai=your-key-goes-here
# Work with Sonnet via OpenRouter's API
aider --model openrouter/anthropic/claude-3.7-sonnet --api-key openrouter=your-key-goes-here
# Work with DeepSeek via OpenRouter's API
aider --model openrouter/deepseek/deepseek-chat --api-key openrouter=your-key-goes-here
See the installation instructions and usage 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 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.
- Use aider inside your favorite editor or IDE.
- Aider works with most popular languages: python, javascript, typescript, php, html, css, and more...
- 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.
- 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.
- Aider works best with Claude 3.7 Sonnet, DeepSeek V3, o1 & GPT-4o and can connect to almost any LLM.
Top tier performance
Aider has 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
- Documentation
- Installation
- Usage
- Tutorial videos
- Connecting to LLMs
- Configuration
- Troubleshooting
- LLM Leaderboards
- GitHub
- Discord
- Blog
Kind words from users
- The best free open source AI coding assistant. -- IndyDevDan
- The best AI coding assistant so far. -- Matthew Berman
- Aider ... has easily quadrupled my coding productivity. -- SOLAR_FIELDS
- It's a cool workflow... Aider's ergonomics are perfect for me. -- qup
- It's really like having your senior developer live right in your Git repo - truly amazing! -- rappster
- What an amazing tool. It's incredible. -- valyagolev
- Aider is such an astounding thing! -- cgrothaus
- It was WAY faster than I would be getting off the ground and making the first few working versions. -- Daniel Feldman
- THANK YOU for Aider! It really feels like a glimpse into the future of coding. -- derwiki
- It's just amazing. It is freeing me to do things I felt were out my comfort zone before. -- Dougie
- This project is stellar. -- funkytaco
- Amazing project, definitely the best AI coding assistant I've used. -- joshuavial
- I absolutely love using Aider ... It makes software development feel so much lighter as an experience. -- principalideal0
- I have been recovering from multiple shoulder surgeries ... and have used aider extensively. It has allowed me to continue productivity. -- codeninja
- I am an aider addict. I'm getting so much more work done, but in less time. -- dandandan
- After wasting $100 on tokens trying to find something better, I'm back to Aider. It blows everything else out of the water hands down, there's no competition whatsoever. -- SystemSculpt
- Aider is amazing, coupled with Sonnet 3.5 it’s quite mind blowing. -- Josh Dingus
- Hands down, this is the best AI coding assistant tool so far. -- IndyDevDan
- [Aider] changed my daily coding workflows. It's mind-blowing how a single Python application can change your life. -- maledorak
- Best agent for actual dev work in existing codebases. -- Nick Dobos