This episode of "Tech in Three" covers three significant developments in AI. The first story discusses Groq's new computer chip, an LPU designed for efficient sequential processing, particularly in natural language processing, offering a potential alternative to traditional GPUs. The second segment highlights Orbital Materials' AI system, Linus, which innovates in material science by generating 3D molecular structures from language instructions. The final story reports on Apple's decision to abandon its self-driving car project, marking a significant shift in the company's direction. The episode encapsulates these key advancements in AI and their potential impact across various sectors.