Ai4 2026, America's largest artificial intelligence conference, concluded yesterday at The Venetian Conference and Expo Center in Las Vegas, welcoming more than 12,000 attendees from 100 countries for its ninth annual event. Attendance increased by more than 50 percent over 2025, growing from 8,000 to more than 12,000 participants. The exhibition grew to include more than 470 exhibitors and sponsors, up from 250 the previous year, while the number of startup companies exhibiting nearly tripled, increasing from 25 to 66. The conference featured more than 1,000 speakers across 80 dedicated education tracks, covering topics from foundation models and agentic AI to AI governance and responsible deployment. Michael Weiss, Co-Founder of Ai4, said the growth demonstrates that AI has become a strategic priority across every sector. A notable session, "The Architects of Intelligence: A Historic Convergence," featured Geoffrey Hinton, Fei-Fei Li, and Andrew Ng, moderated by Yun-Hee Kim of The Washington Post. Additional keynote speakers included Pat Gelsinger, Sachin Katti, Jeetu Patel, Sebastian Thrun, Dmitri Dolgov, Srini Venkatesan, Anastasis Germanidis, and Inhi Cho Suh.