Jeff Bezos hasn’t held a CEO title since stepping down from Amazon in July 2021. Five years later, he’s back in the big chair, and this time he’s building something that has nothing to do with delivering packages to your doorstep.
Project Prometheus, the AI startup Bezos co-founded with Vik Bajaj in November 2025, has raised $18.2 billion in total funding and reached a $41 billion valuation. That’s roughly seven months of existence. For context, it took Amazon about six years after its IPO to crack a $20 billion market cap.
Not another chatbot company
Here’s the thing about Prometheus: it’s not trying to build a better ChatGPT. The company’s stated mission is developing what it calls an “artificial general engineer,” a system designed to optimize the invention and manufacturing process for physical products like computers, automobiles, spacecraft, and jet engines.
The approach differs from conventional large language models in a fundamental way. Rather than scraping the open internet for training data, the startup uses specialized, hard-to-access datasets tailored specifically to the demands of physical production. Think proprietary engineering specifications, manufacturing tolerances, and materials science data that doesn’t live on Reddit or Wikipedia.
