Elon Musk predicts humanoid robots could outnumber humans, possibly reaching 10 billion. Tesla's Optimus, priced at $20,000-$30,000, is set for mass production, with 10,000 units targeted by year-end.

Tesla's Optimus robots will be used to explore the surface of Mars, Elon Musk confirmed today. The humanoid robots, which were initially pitched as household assistants in October last year, will "hopefully" be sent to Mars on a SpaceX flight by the end of 2026.

Ray Wang, founder of the Silicon Valley-based firm Constellation Research, flagged Optimus — Musk’s humanoid robot — as a vulnerable spot. Musk expects the robot “will be overwhelmingly the value of the company” and eventually generate $10 trillion in revenue as the “biggest product in history.”