Nous Research confirmed it has raised a $90 million Series B at a $1.5 billion valuation, matching earlier reports. Robot Ventures led the round, with participation from Nvidia, Union Square Ventures, Menlo Ventures, Samsung, and 1789 Capital. The new funding brings the three-year-old startup's total raised to $158 million.

The company is best known for the open-source Hermes Agent, which has been cloned more than 24 million times and, by its own estimates, accounts for roughly 2.5% of global AI token usage. Nous Research was at about $36 million in annualized revenue by mid-September 2026 and expects to pass $100 million before the end of the year, according to The Wall Street Journal.

The capital will fund the launch of 'Hermes for Businesses,' an enterprise offering that lets companies deploy customized AI agents for multi-step workflows while keeping their data private and secure. The move signals a shift from the startup's developer and consumer base toward larger commercial customers.