# The $900 Billion Giant: How Anthropic Got So Big, So Fast > Source: > Published: 2026-05-29 12:23:28+00:00 Newsletter ## DealBook The artificial intelligence giant was just valued at $900 billion, surpassing OpenAI. Here are the numbers behind its rise — and headwinds it faces. **Andrew here.** Anthropic is now more valuable than OpenAI, something Silicon Valley wouldn’t have expected a year ago. We go behind the numbers — and outline the risks the new leader in A.I. faces. Also: Lauren Hirsch has a scoop on deal talks between iHeartMedia and SiriusXM, which were put on pause. And Dell’s stock is flying, raising new questions about President Trump’s investments in the computer giant. ## The numbers behind Anthropic’s rise A year ago, the biggest and buzziest artificial intelligence start-up around was undoubtedly OpenAI. That’s no longer the case. Anthropic has taken that crown with its [$65 billion fund-raising round](https://www.nytimes.com/2026/05/28/technology/anthropic-tops-openai-valuation.html). How the company went from also-ran to 900-pound gorilla is a reflection of the current state of the A.I. race, and it raises questions about what comes next. **Where things stand:** Anthropic is valued at $900 billion, while OpenAI was last valued at $730 billion, not including the $122 billion it had just raised. **Behind Anthropic’s ascent:** The company’s Claude models were consistently highly regarded. But by November, Anthropic’s Claude Code programming tool had become exponentially better at automating software development, driving a surge in adoption. ## Related Content Advertisement [SKIP ADVERTISEMENT](#after-bottom)