Explore the future of AI-powered user interfaces through this 36-minute design review session featuring Y Combinator General Partner Aaron Epstein and Raphael Schaad, founder and designer of Cron (now Notion Calendar). Examine groundbreaking AI interface examples across seven innovative companies including Vapi, Retell AI, Gumloop, AnswerGrid, Polymet, Zuni, and Argil. Analyze how AI agents, adaptive UI systems, video prompts, and realistic voice APIs are transforming software interaction patterns. Discover emerging design principles for AI-native applications and understand how these interface innovations are reshaping the future of human-computer interaction. Learn from detailed critiques of real-world implementations spanning voice interfaces, workflow automation tools, conversational AI platforms, and video generation systems.