Anthropic’s revenue race has no precedent. In just over a year, its annualized sales went from $9 billion at the end of 2025 to more than $30 billion today. That jump follows a move from $19 billion in early March—meaning the company added roughly $11 billion in run-rate revenue in a matter of weeks. Claude, Anthropic’s flagship AI model, only launched three years ago, yet more than 1,000 businesses now pay over $1 million each, per year, for access. Comparisons make the growth even starker. OpenAI sits at about $25 billion in annualized revenue but has a far broader user base. Zoom’s four-fold revenue surge during COVID looks tame next to Anthropic’s climb on a much larger starting point. Snowflake took a decade to hit $1 billion; Anthropic did it in three years and piled on another $29 billion a year later. Even Google’s early-2000s ad boom—$400 million to $6 billion over three years—can’t match this pace. This isn’t about buying rivals or locking in government contracts. Customers are lining up and writing checks. When you compare it to Standard Oil’s 34-year climb—built on rebates and acquisitions—Anthropic’s sprint stands out. Rockefeller might have run industry-wide, but today’s AI player is hitting benchmarks in months that once took decades.