Elon Musk said Tesla is finalising Optimus 3.0, a humanoid robot designed for human-like dexterity and mass production. He called it harder than any Tesla project "except Starship," with parts requiring an all-new supply chain. Optimus could cost $20,000-$25,000 at scale, potentially 1 million units/year. Musk also unveiled Tesla's AI5 chip roadmap.