Elon Musk unveils prototype of Tesla’s humanoid robot Optimus, says it will cost less than a car

Prototype seen as CEO’s effort to shape perception of the company as more than just a car maker
Prototype seen as CEO’s effort to shape perception of the company as more than just a car maker
Elon Musk showed off a new humanoid robot Friday at a Tesla Inc. artificial-intelligence event, part of the chief executive’s effort to shape public perception of the company as more than an electric-vehicle maker.