Prometheus · 2026-06-11 · major
Jeff Bezos's Prometheus Closes $12B Series B at $41B Valuation — JPMorgan, Goldman Sachs, BlackRock, DST Global, and Arch Venture Partners Back the 'Artificial General Engineer' Industrial-AI Lab Bezos Co-Leads With Former Verily Cofounder Vik Bajaj, Now 150 Staff Across San Francisco, London, and Zurich
Bezos's industrial-AI lab Prometheus raises $12B Series B at a $41B valuation to build an 'artificial general engineer' for designing and manufacturing jet engines, drugs, and other physical products, eight months after a $6.2B Series A.
Bezos puts a $41B price tag on the bet that AI's next leg is designing and manufacturing physical things, not generating text.
Key specs
| Series b | $12B |
|---|---|
| Valuation | $41B |
| Series a | $6.2B (Nov 2025) |
| Total funding | >$18B |
| Employees | ~150 |
| Offices | San Francisco, London, Zurich |
What is it?
Prometheus is a roughly year-old industrial-AI lab Jeff Bezos co-leads with Stanford medical professor and former Verily cofounder Vik Bajaj. It is building what Bezos calls an 'artificial general engineer' — AI tools that help small teams design and manufacture complex physical products like jet engines, medical devices, pharmaceutical compounds, and advanced computing hardware. The Series B brings total raised to more than $18B in about eight months.
How does it work?
The pitch differs from frontier-LLM labs: Prometheus trains on real-world experimental and robotics-interaction data rather than text and images alone, with the goal of producing models that can guide a part from concept through performance modeling and into manufacturing. The company has pulled staff from OpenAI, Google DeepMind, and Nvidia, runs 150 people across three offices, and Bezos says 'a large portion of the capital will go toward the company's large compute needs.' Bajaj and Bezos plan to acquire downstream companies that benefit from the technology.
Why does it matter?
The round is a public-market-grade endorsement of 'physical AI' from JPMorgan, Goldman Sachs, BlackRock, DST Global, and Arch Venture Partners, and a signal that the industry's next $1T-valuation race may not be a chatbot. It is also Bezos's first operating CEO role since stepping down at Amazon in 2021, putting his time — not just his cheque — behind the thesis that hardware-grounded AI is more defensible than software alone.