AI data center startup Fluidstack is in talks to raise approximately $1 billion in new funding. The round would value the company at around $18 billion. This represents a significant increase from its $7.5 billion valuation earlier this year. Jane Street and Situational Awareness are reportedly in discussions to lead the investment. Morgan Stanley is advising on the deal.

The fundraising follows a $50 billion agreement between Fluidstack and Anthropic. Fluidstack will build and operate custom data centers for the AI firm. The infrastructure will support Anthropic’s advanced artificial intelligence models. Anthropic maintains significant backing from major technology companies including Google and Amazon.