Open-source AI lab Nous Research, the team behind the Hermes agent, is reportedly finalizing a new round led by Robot Ventures with strong participation from USV, at a $1.5 billion valuation.

The company is raising at least $75 million, following a prior $50 million Series A and a fast rise in developer interest around Hermes, which ships with built-in skills for web search, coding, and image understanding.

Hermes has already built a large open-source following, with roughly 214K GitHub stars and nearly 40K forks, as Nous continues pushing into the agentic AI race.