Cursor AI is a VS Code-based AI code editor with Claude, GPT & Gemini built in. TL;DR Cursor AI is an AI-first code editor based on VS Code, built by Anysphere Inc. and co-founded in 2023 by four MIT graduates. Unlike plugins, it runs LLMs like Claude, GPT, and Gemini directly inside the editor — enabling real-time suggestions, autonomous multi-file editing, bug detection, and refactoring without context-switching. Developer teams using Cursor report 20–40% faster feature delivery and 20% fewer production bugs. Key takeaways Cursor AI is an AI-native IDE (VS Code fork) with built-in LLM collaboration — not a plugin. Agent Mode executes multi-file, multi-step tasks autonomously. Priced from free (Hobby) to $200/month (Ultra); Teams at $40/user/month. Used by engineers at OpenAI, NVIDIA, Shopify, Coinbase, and 50%+ of Fortune 500. Honest limitation: requires internet — no offline or air-gapped support. What is Cursor AI?…