Following Jensen Huang's keynote address at Nvidia's (NVDA) GTC A.I. event, investors have a lot to parse through. From the company's Blackwell Ultra and Rubin chips to its GR00T autonomous robot announcement, NVDA cemented its place in the A.I. trade. The company also announced a deal to work with General Motors (GM) on self-driving technology. Jenny Horne recaps the biggest A.I. event so far in 2025.