United States-based Prometheus, a physical AI startup co-founded by Jeff Bezos and Vik Bajaj, has raised $12 billion in its second funding round, valuing the company at $41 billion. The raise follows an initial $6.2 billion investment and lifts Prometheus’s total capital to more than $18 billion, positioning it among the most richly valued private AI startups. Investors in the latest round include Bezos personally, alongside major financial institutions and investment firms such as JPMorgan Chase, Goldman Sachs, BlackRock, DST Global, and Arch Venture Partners. The company is developing software it describes as an “artificial general engineer,” or AGE. United States-based Prometheus aims to automate the design and manufacturing of complex physical systems, focusing on sectors including jet engines, aerospace components, drug compounds, and advanced manufacturing. Its model architecture combines physics-based knowledge with empirical testing results and uses proprietary industrial and experimental data to train AI systems intended to replace large segments of traditional engineering labor. The company says its heavy capital needs reflect the high compute intensity required to generate training data and run physical testing workflows. Prometheus is also pursuing data-sharing collaborations and potential acquisitions to extend deployment of its technology across industrial partners.

Prepared by Christopher Adams and reviewed by editorial team.