aider-mirror/aider/website/docs/install/install.md

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Installation	10

Installing aider

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Python version

Aider currently works with python 3.9-3.12.

Install git

Make sure you have git installed. Here are instructions for installing git in various environments.

Get your API key

To work with OpenAI's models like GPT-4o or GPT-3.5 you need a paid OpenAI API key. Note that this is different than being a "ChatGPT Plus" subscriber.

To work with Anthropic's models like Claude 3.5 Sonnet you need a paid Anthropic API key.

{% include venv-pipx.md %}

Mac/Linux install

# Install aider
python -m pip install -U --upgrade-strategy only-if-needed aider-chat

# To work with GPT-4o:
$ aider --4o --openai-api-key sk-xxx...

# To work with Claude 3.5 Sonnet:
$ aider --sonnet --anthropic-api-key sk-xxx...

Windows install

# Install aider
python -m pip install -U --upgrade-strategy only-if-needed aider-chat

# To work with GPT-4o:
$ aider --4o --openai-api-key sk-xxx...

# To work with Claude 3.5 Sonnet:
$ aider --sonnet --anthropic-api-key sk-xxx...

{% include python-m-aider.md %}

Working with other LLMs

{% include works-best.md %}

You are done!

There are some optional install steps you could consider. See the usage instructions to start coding with aider.