Aider vs Plandex
Both are AI code tools. Here’s how they compare on pricing, use case and popularity — so you can pick the right one without opening ten tabs.
Aider
Aider is a free, open-source command-line AI coding tool that connects to your git repo and edits files directly. It works with any AI model (GPT-4o, Claude, etc.) and has strong multi-file editing, test-running and commit support. Popular with developers who prefer terminal workflows.
Plandex
Plandex is an open-source AI coding agent that works in the terminal, designed for complex tasks that span many files and require multiple steps. It plans the work before executing, allowing you to review and adjust the approach before any changes are made.
Pick Aider if you want developers who want a free, open-source, terminal-based ai coding assistant. Pick Plandex if you want developers who want an open-source agent for complex multi-file coding tasks. Both have a free way to try them, so the fastest answer is to open each and run your real task.