Jeff Bezos, four years removed from the CEO chair at Amazon, is building an AI company that wants nothing to do with chatbots. Project Prometheus, the secretive startup he cofounded in November 2025, is closing a $10 billion funding round at a $38 billion post-money valuation, according to the Financial Times, Reuters, and Business Insider, citing multiple sources familiar with the deal.

The round is anchored by BlackRock and JPMorgan. If completed, it would bring total capital raised to more than $16 billion in just five months of existence. A spokeswoman for the startup declined to comment.

Physics, Not Language

While every other well-funded AI lab is racing to build better large language models, Prometheus is doing something different. The company is focused on "physical AI," which means training models on industrial data to understand real-world physics, materials science, and engineering processes. The applications: manufacturing, aerospace, and semiconductor production.

The models are designed to interact with physical systems, not generate text or images. Think AI that can simulate how a jet engine component will behave under stress, or optimize a semiconductor fabrication process in real time. This is not consumer-facing. It is industrial intelligence at scale.

The Team

Bezos cofounded the company with co-CEO Vik Bajaj, who previously held senior roles at Google X (Alphabet's moonshot lab) and is an adjunct professor at Stanford University's School of Medicine. The company has been aggressively hiring from OpenAI, xAI, and Google DeepMind, according to LinkedIn data, and currently has between 50 and 200 employees.

Prometheus has also been snapping up office space in San Francisco, per the SF Standard. For a company that has barely existed for half a year, it is moving with the urgency of a startup that knows the window is closing.

The $100 Billion Shadow

The $10 billion round is not the most interesting number. Last month, the New York Times reported that Bezos has been in early discussions with investors in the Middle East and Southeast Asia to raise as much as $100 billion for an investment fund to acquire or invest in companies that would benefit from the technology Prometheus develops. That is not a research lab. That is an industrial empire play.

The thesis appears to be: build the AI models that understand physical systems, then use a massive fund to acquire or invest in the manufacturers, factories, and production facilities that those models will transform. Vertical integration from the intelligence layer down to the factory floor.

The Competition Problem

Prometheus is entering a crowded field, but it is not exactly the same field. OpenAI, Anthropic, Google DeepMind, and xAI are all building general-purpose AI. Prometheus is betting that physical AI is a distinct category that requires different data, different architectures, and different expertise. It is also competing with Periodic Labs, founded by William Fedus, a former VP of research at OpenAI who helped lead post-training efforts behind ChatGPT.

But what Prometheus does have is Bezos and his $224 billion bank account. In the current AI funding environment, that is not just an advantage. It is a gravitational force.