Nous Research, an open-source AI startup founded three years ago, has secured a $90 million Series B round led by Robot Ventures, boosting its valuation to $1.5 billion. Major investors include NVIDIA, Union Square Ventures, Samsung, and 1789Capital. With its popular Hermes Agent cloned over 24 million times and accounting for 2.5% of global AI token usage, the company plans to use the funds to enter the enterprise market with a new product, Hermes for Businesses. This service enables companies to deploy customized AI agents for complex workflows while ensuring data privacy. Annualized revenue has reached approximately $36 million, with projections to exceed $100 million by the end of 2026.