Nous Research Confirms $1.5B Valuation With $90M Series B, Launches Hermes Agent for Business

Nous Research has raised a $90 million Series B round that values the company at $1.5 billion, the AI developer confirmed, pairing the funding news with the commercial launch of Hermes Agent, an agentic product aimed at business customers. The valuation marks a sharp step up for a lab that built its reputation on open-weight language models rather than enterprise contracts.

Hermes Agent is the company's bet that its model work can be converted into recurring revenue. The product is positioned for business users, a crowded segment where OpenAI, Anthropic, Google and a long list of startups already sell agent frameworks that connect models to internal tools and data. Nous has not disclosed pricing, customer names, or how the agent handles the permissions and audit trails that enterprise buyers typically require before letting software act on their systems.

The round lands as investors concentrate capital in a smaller number of AI companies and demand clearer paths to revenue. A $1.5 billion valuation on $90 million raised implies a modest dilution stake for new backers, and it sets a bar the company must clear with actual bookings rather than benchmark scores. Nous has not said who led the round or which existing investors participated.

Nous built its following with the Hermes family of fine-tuned open models, released under permissive licenses and widely used by developers who run inference on their own hardware. That community gave the company distribution without a sales force, but open weights generate little direct income. Selling an agent product means competing on reliability, integrations and support, where open-source goodwill does not automatically translate into signed contracts.

The move also tests whether an open-model shop can keep publishing weights while operating a commercial agent platform. Enterprise customers often want guarantees about data handling and model behavior that sit awkwardly beside fully open releases, and rivals have split those efforts into separate hosted and open tracks. How Nous draws that line will shape what its existing users can expect from future Hermes releases.

What to watch now is whether Nous names the round's lead investor, publishes Hermes Agent pricing and design partners, and discloses any usage or revenue figures. The harder question is whether agent buyers will pay a premium for a vendor whose main differentiator has been open access, or whether they treat agent orchestration as a commodity layer on top of whichever model is cheapest.