Jeff Bezos has broken his silence on Project Prometheus, the stealth AI startup he co-founded in late 2025 that has quickly grown into one of the most highly valued private companies in the technology sector. In his first public comments about the venture, Bezos described Prometheus as building an "artificial general engineer" -- and was quick to clarify what it is not.
"This has nothing to do with robotics," Bezos told GeekWire in a wide-ranging interview published this week. "We are building a very, very modern version of CAD. Think of it as an artificial general engineer -- tools that let you design physical objects with an intelligence that understands real-world constraints."
A $38 Billion Bet on Physical AI
Project Prometheus, co-led by Bezos and former Google executive Vik Bajaj, has raised approximately $10 billion at a $38 billion valuation. JPMorgan and BlackRock led the latest funding round, which followed an initial $6.2 billion commitment partly funded by Bezos himself. The startup operates from offices in San Francisco, London, and Zurich.
The company's mission is to bring AI into the physical design process -- not through robotic manipulation, but through intelligent simulation. Prometheus is developing foundation models trained on engineering data, physics simulations, and manufacturing constraints that can help engineers design everything from consumer products to aerospace components.
Bajaj, who spent over a decade at Google leading technical infrastructure teams, described the opportunity in characteristically ambitious terms. "The gap between what AI can do with text and code versus what it can do with physical design is enormous," he said. "We are closing that gap."
The startup has hired roughly 120 employees drawn from OpenAI, DeepMind, Meta AI, and xAI, assembling what industry observers consider one of the strongest technical teams in the AI sector outside the major labs.
Why Bezos Came Back
The Prometheus venture marks the first time Bezos has taken a formal operational role in a company since stepping down as Amazon CEO in 2021. His decision to co-lead the startup rather than simply invest signals a personal conviction about the opportunity that goes beyond financial returns.
Bezos has long been fascinated by the intersection of computation and physical engineering, a passion visible in both Blue Origin's rocket development and Amazon's logistics infrastructure. Prometheus represents a synthesis of those interests, applied through the lens of modern AI capabilities.
"You should not worry about an AI bubble," Bezos told CNBC in a separate May interview, pushing back on concerns about overinvestment in the sector. "The applications we are seeing are real, and they are just beginning."
The Competitive Landscape
Prometheus enters a market that includes established players like Autodesk, Siemens, and Dassault Systemes, all of which have been integrating AI features into their design software. But Prometheus is building from scratch with AI at the core rather than bolting capabilities onto legacy platforms.
The $38 billion valuation places Prometheus in rarefied company among private AI startups, behind only OpenAI and Anthropic in implied value. Whether the company can justify that valuation will depend on its ability to deliver tools that meaningfully accelerate physical product development.
What to Watch
Prometheus is expected to reveal its first product demos in the second half of 2026, likely targeting the aerospace and automotive verticals where Bezos has existing relationships. The key question is whether AI-native design tools can displace entrenched incumbents in an industry where switching costs are extraordinarily high.
"This has nothing to do with robotics. We are building a very, very modern version of CAD."— Jeff Bezos, Co-CEO, Project Prometheus