Jeff Bezos returns to CEO role at AI startup Prometheus, calling AI work a demanding but rewarding "Type 2 fun."

Prometheus is Jeff Bezos' AI startup that launched in November with $6.2 billion in funding. Vik Bajaj is his co-CEO.

Jeff Bezos' AI startup Prometheus reaches $41 billion valuation with $16.2 billion in total funding, targeting AI for engineering and manufacturing.

Prometheus, Jeff Bezos' AI Startup, Is Now Worth $41 Billion