Nous Research Valued at $1.5B After 50% Jump in Three Months

Nous Research is raising at least $75 million at a $1.5 billion valuation, led by Robot Ventures with USV backing. The round closes three months after a Series A at $1 billion, driven by investor appetite for open-source AI agent frameworks. Hermes, Nous's core project, has 214,000 GitHub stars—but disclosed product milestones supporting the valuation jump remain unclear.