What is Cursor AI?
Cursor is an AI-powered code editor made by Anysphere. Built as a fork of VS Code, it embeds AI directly into coding: it autocompletes code (Tab), edits on command (Cmd+K), answers questions (Chat), and runs an autonomous Agent that edits multiple files and executes terminal commands using models from Anthropic, OpenAI, Google, and its own Composer model.
Why — the first-principles explanation
At its core, Cursor answers a simple question: what if the AI lived inside your editor instead of in a separate browser tab. Ordinary AI chatbots are powerful but disconnected, you copy code out, paste an answer back, and re-explain your project every time. Cursor removes that gap by building the AI into the tool where you already write code.
To do this, Anysphere took VS Code, the world's most popular open-source editor, and forked it. That instantly gave Cursor a mature editor with extensions, themes, and a huge existing user base, so they could focus their energy on the AI layer rather than rebuilding a text editor.
The AI layer works by indexing your codebase into a searchable form. This is the key trick: when you ask a question or give a task, Cursor can automatically find and read the relevant files, so it understands how your project fits together instead of guessing from a single snippet.
Cursor does not build its own frontier brain from scratch for everything; it routes your request to the best model for the job, Anthropic's Claude, OpenAI's GPT, Google's Gemini, xAI's Grok, or Cursor's own Composer model, and increasingly acts as an autonomous agent that plans, edits, tests, and fixes across your whole project.
An example that makes it click
Picture a word processor that has secretly read your entire novel. As you type a sentence, it suggests the next line in your style. Highlight a paragraph and say "make this scarier," and it rewrites it. Ask "which chapter introduces the villain?" and it just knows. Now say "add a new subplot," and it edits chapters three, seven, and nine to weave it in, then re-reads the book to check it still makes sense. That is Cursor, except the novel is your codebase and the sentences are lines of code.
Key facts
- Cursor is made by Anysphere and is a fork of the open-source VS Code editor.
- It embeds AI as Tab autocomplete, Cmd+K inline edit, Chat, and an autonomous Agent.
- Agent mode can edit multiple files and run terminal commands, then fix its own errors.
- It supports models from Anthropic (Claude), OpenAI (GPT), Google (Gemini), and xAI (Grok), plus Cursor's own Composer model.
- Cursor indexes your codebase so the AI can find relevant files automatically.
- It offers a free Hobby plan and paid plans starting at $20/month (as of 2026-07).
An AI-first code editor built on VS Code.
Affiliate link — we may earn a commission at no cost to you.▶ The 60-second explainer (script)
What is Cursor? It's an AI-powered code editor built by a company called Anysphere. Here's the simple idea: instead of copying your code into a chatbot in another tab, Cursor puts the AI directly inside the editor where you already work. They built it by forking VS Code, the world's most popular code editor, so it feels familiar from day one. What makes it special is that Cursor reads and indexes your entire project. So when you ask a question or give it a task, it already knows which files matter. It autocompletes as you type, edits code on command, answers questions about your project, and runs an autonomous agent that can change many files and run terminal commands on its own. Under the hood, it routes your request to the best AI model, Claude, GPT, Gemini, or its own Composer. In short: Cursor is your codebase, plus a very smart assistant living right inside it.
What authoritative sources say
People also ask
Who makes Cursor?
Cursor is built by Anysphere, a company focused on AI-assisted software development.
Is Cursor the same as VS Code?
It's a fork of VS Code, so it looks and behaves similarly but adds a deep AI layer on top.
What programming languages does Cursor support?
Essentially all of them, since it inherits VS Code's language support and the AI models are language-agnostic.
Is Cursor free to try?
Yes. There's a free Hobby plan and a roughly two-week Pro trial for new users.