Brie Wolfson Shares Candid Insights from 60-Day Immersion at AI Coding Unicorn Cursor

San Francisco – Brie Wolfson, Chief Marketing Officer at Colossus and Positive Sum, has offered a revealing look into her 60-day experience working at Cursor, the rapidly growing AI-powered code editor developed by Anysphere Inc. Wolfson, who recently published an essay titled "Inside Cursor" on Join Colossus, described her time at the company as "one of the most thrilling phases of my professional life."

Wolfson's immersion at Cursor, a company known for its proprietary AI-powered integrated development environment (IDE), provided her with unique insights into its operations and culture. She noted that while some aspects matched her expectations, many others did not, contributing to the "mystique around the company." Her essay delves into these surprising discoveries.

Cursor, developed by Anysphere Inc., has seen explosive growth since its founding in 2022 by MIT graduates Sualeh Asif, Arvid Lunnemark, Aman Sanger, and Michael Truell. The company secured $8 million in seed funding in 2023, led by OpenAI's Startup Fund, followed by a $60 million Series A round led by Andreessen Horowitz in August 2024, valuing the company at $400 million. Subsequent funding rounds in 2025, including a $105 million Series B and a $900 million round, pushed its valuation to $9 billion.

The AI code editor is a fork of Visual Studio Code, integrating advanced AI features like code generation, smart rewrites, and codebase queries to enhance developer productivity. Cursor's agent mode allows for end-to-end task completion, keeping programmers in the loop. The company recently announced using Chinese AI models for its proprietary tools, Composer and SWE-1.5, highlighting a shift in the global AI ecosystem.

Wolfson's observations, detailed in her essay, provide a valuable perspective on the internal workings of a high-growth AI startup. Her reflections contribute to the ongoing discussion about the impact of AI on software development and the unique cultures emerging within leading AI companies.