Cursor

Cursor is an AI-first integrated development environment based on VS Code that embeds large language models for completion, refactoring, and multi-file edits. Developers chat with the codebase as context, apply suggested diffs across files, and use agent-style flows to plan and execute longer tasks with terminal and search tools.

It competes on deep editor integration: semantic indexing of the project, rules files for team style, and models from multiple providers depending on plan. Teams adopting it typically want faster iteration on greenfield features, boilerplate reduction, and exploratory refactors with human review.

A free tier exists; paid plans unlock higher limits, premium models, and collaboration features. Treat AI-generated changes like any contribution—run tests, read diffs, and watch for subtle logic bugs or dependency issues.