Cursor is an AI-powered code editor built on Visual Studio Code that uses large language models to provide intelligent code completion, generation, and codebase understanding across multiple programming languages.

The editor includes features like multi-line edits, smart rewrites, chat-based queries, and an agent system that can automate coding tasks and run terminal commands. It supports custom AI models from OpenAI, Anthropic, Gemini, and xAI, with keyboard shortcuts like Ctrl+K for code generation and Ctrl+I for multi-file edits.