Anthropic, the company behind the Claude AI system, grew 80 times in annualized revenue and usage during the first quarter of 2026. That’s not a typo. Bessemer Venture Partners partner Byron Deeter flagged the figure as evidence of what he called a “once-in-a-generation” company.

To put that in context, the company’s own internal projections anticipated roughly 10x growth. Anthropic blew past that by a factor of eight. The result: an estimated run-rate revenue of $47 billion by mid-May 2026, a staggering leap from prior annualized figures that had been tracking around $14 billion and then $30 billion in earlier periods.

A $65 billion fundraise and a near-trillion-dollar valuation

On May 28, 2026, Anthropic closed a $65 billion Series H funding round. The post-money valuation landed at $965 billion, placing the company within striking distance of the trillion-dollar club that was, until recently, reserved for a handful of legacy tech giants.

The round attracted a who’s who of venture capital. Altimeter, Dragoneer, Greenoaks, Sequoia, and Bessemer all added to their positions. Bessemer has backed Anthropic since at least its Series D, meaning the firm has had a front-row seat to this growth curve for some time.

Anthropic now serves over 300,000 business customers. For a company founded just five years ago, that enterprise footprint is remarkable.

From OpenAI spinout to potential trillion-dollar company

Anthropic was founded in 2021 by Dario and Daniela Amodei, both former executives at OpenAI. The founding thesis centered on building AI systems with a stronger emphasis on safety and interpretability.

The growth trajectory tells a clear story. Revenue climbed from an estimated $14 billion annualized to $30 billion, then surged to $47 billion in run-rate by mid-May. Each milestone arrived faster than the last, compressing what would normally be years of scaling into months.