Aider vs Cline

Aider is a terminal tool that pair-programs with you. You tell it what to change, it edits the files, and — here is the part that wins people over — it creates a clean git commit with a descriptive message. Every change is tracked, reviewable, and revertable. No other AI coding tool handles version control this naturally.

Built by Paul Gauthier, it consistently ranks at the top of SWE-bench coding benchmarks. The tradeoff is that it is terminal-only and requires you to bring your own API key. If you are already comfortable with git and the command line, aider fits into your workflow like a glove. If you want a visual editor experience, look at Cursor or Cline instead.

Cline is a VS Code extension that turns your editor into an AI coding agent. Pick your AI model (Anthropic Claude, OpenAI, local models through Ollama), give it a task, and it will plan, write code, run commands, and iterate. It asks for permission before each action, so you stay in control.

The big advantage over Cursor is flexibility and transparency. You see exactly what you are paying (API costs per request), you can switch models anytime, and there is no subscription. The big disadvantage is that you have to manage all of that yourself. If you want something that just works out of the box, Cursor is easier. If you want to pick your own model and only pay for what you use, Cline is the way.