Humanoid robots have long been a punchline, from clumsy factory demos to viral clips of machines tripping over cables. Tesla’s Optimus project arrived in that context, easy to mock and easier to dismiss as a distraction from electric cars.

Tesla Inc. will spend over $20 billion on a dramatic reshuffling of factory lines reflecting Elon Musk’s repositioning of the carmaker coming off a multiyear sales slump.

Analysts are concerned about Tesla's declining deliveries and challenges the firm could face in AI and robotics.

On Tesla’s earning call, Elon Musk described how some car models were being discontinued to make way for robot manufacturing, giving investors a new look at Tesla’s future with humanoid robotics. CNN’s Hadas Gold reports.

Tesla will end production of its Model S sedan and Model X SUV and convert assembly lines at its California factory to manufacture Optimus humanoid robots, CEO Elon Musk said.