A founder with a ten-person team must choose between numerous AI conferences this fall, as events have multiplied so quickly that no single event can represent the industry. Four events on the US calendar between August and October 2026 illustrate this split. Ai4, starting August 4-6 at The Venetian in Las Vegas, is projected to draw more than 12,000 attendees, 1,000 speakers and 400 exhibitors, with twenty industry tracks and an audience of corporate executives. Seven weeks later, The AI Conference runs September 29 through October 1 at Pier 48 in San Francisco, aimed at engineers and researchers, with organizers expecting roughly 5,500 attendees. Two weeks after that, TechCrunch Disrupt in San Francisco moves the conversation from research to capital.