Marc Raibert, the founder of Boston Dynamics, gave the world a menagerie of two- and four-legged machines capable of jaw-dropping parkour, infectious dance routines, and industrious shelf stacking.

Norwegian robotics startup 1X plans to start early tests of its humanoid robot, Neo Gamma, in “a few hundred to a few thousand” homes by the end of 2025, according to the company’s CEO, Bernt Børnich.

Dozens of companies are building robots that look like humans. One of them is training a machine to be a butler and will soon test them in homes. Dozens of companies are building robots that look like ...