Fluidstack, a rapidly expanding startup focused on artificial intelligence data centers, is in advanced discussions to secure one billion dollars in fresh funding. The proposed round could push the company’s valuation to eighteen billion dollars, marking a significant milestone in its growth trajectory. Sources indicate that global trading firm Jane Street is expected to lead the investment.

The planned fundraising reflects a sharp increase from the company’s previous valuation discussions just months ago. In December, Fluidstack was reportedly seeking around seven hundred million dollars at a valuation of seven point five billion dollars. Although that round was not formally confirmed, the latest talks suggest a strong surge in investor confidence.

Earlier funding interest attracted prominent backers, including the Collison brothers of Stripe, former GitHub chief Nat Friedman, and entrepreneur Daniel Gross. The round was also associated with Situational Awareness, a fund dedicated to advancing artificial general intelligence technologies.

A major driver behind Fluidstack’s rising profile is its partnership with artificial intelligence company Anthropic. The two firms signed a fifty-billion-dollar agreement to develop custom data centers in Texas and New York, giving Anthropic greater control over its computing infrastructure amid increasing demand.

The partnership has elevated Fluidstack’s market position, prompting the company to relocate its headquarters to New York and concentrate on the United States market. With clients such as Meta and other AI-focused firms, Fluidstack is positioning itself as a major force in next-generation cloud infrastructure.