Anysphere, Inc. is a San Francisco–based AI developer-tools company behind Cursor, an AI-native code editor that sits at the center of an emerging “vibe coding” movement: developers describe what they want in natural language and the editor plans, edits, and refactors code across entire repositories. Founded in 2022 by four MIT students (Michael Truell, Sualeh Asif, Arvid Lunnemark, and Aman Sanger), the company has grown from an early-stage applied research project into one of the fastest-scaling AI software businesses globally.
Cursor is built as a fork of Visual Studio Code, meaning it preserves the familiar keyboard shortcuts, extension ecosystem, and mental model of the world’s most popular editor, but re-architects the environment around AI-native workflows. Instead of limiting AI to autocomplete, Cursor supports multi-file refactors, agentic workflows that carry out multi-step edits, and deep codebase search and reasoning, positioning it as a full AI pair-programmer rather than a thin plugin.
By late 2025, Anysphere had become a flagship example of AI-driven hyper-growth. A June 2025 round led by Thrive Capital raised approximately $900 million at a valuation near $9.9 billion. In November 2025, the company closed a Series D of approximately $2.3 billion that valued Anysphere at around $29.3 billion post-money. The company reported crossing $1 billion in annualized revenue and having over 1 million daily active users by that time. In December 2025, Anysphere announced the acquisition of Graphite, a code review startup, to expand its capabilities across the software development lifecycle.
Anysphere positions itself less as a generic AI lab and more as an “applied research” company dedicated to software creation: it uses top-tier frontier models under the hood, but the moat is in workflow, product integration, and the breadth of the engineering stack it aims to cover—editing, code search, refactoring, debugging (via Bugbot), code review (via Graphite), and eventually governance and quality gates around AI-produced code.
Note: Co-founder and CTO Arvid Lunnemark departed the company in October 2025 to found a safety-focused AI research lab called Integrous Research. The remaining three co-founders continue to lead the company.