use case
Code with an AI that knows your codebase
Not autocomplete — a collaborator that understands the whole project, catches the edge cases you missed, and explains why it made the change it made.
5 tools for this job
Cursor
“If you write code professionally, this is the call. The agent mode is the first one I trust to refactor across files without breaking my head. Pricier than feels fair but I've cancelled and come back twice.”
AI moves fast — check for updates
Aider
“Cursor's terminal-native cousin, and the right pick if you live in tmux. Free, model-agnostic, and the git integration is the cleanest take on the AI-pair-programming idea anyone's shipped.”
AI moves fast — check for updates
Claude
“The one I actually leave open while writing. Calm, careful, more willing to admit when it doesn't know than the alternatives. Refusals are still sometimes overzealous but the prose is the cleanest in the market.”
AI moves fast — check for updates
ChatGPT
“The default for a reason — it's still the best generalist, and the multimodal stack has caught up to anything Google ships. The personality is a little salesman-y if you let it default; system-prompt it down and it gets honest fast.”
AI moves fast — check for updates