Have you ever wanted to wipe down a table hundreds of times while Elon Musk watches? Training Tesla's humanoid robot might be the job for you.

Once again, with its metal innards exposed, Iron walked across the stage in a very human-like way. It’s an extraordinary sight, and anyone with a nervous disposition may shudder at the spectacle of the bipedal bot strolling along in such a realistic way.

At this early stage, the best way to invest in the burgeoning AI-powered humanoid robot market is to buy Nvidia stock.

Tesla's Optimus robot handed out candy by New York's Nasdaq building. The bot was plugged in, and it's unclear whether it was tele-operated by humans.

Humanoid robot training is booming around the world. Tech companies are rushing to build the robots for a market projected to reach $38 billion within the next decade.

Massachusetts robotics entrepreneurs focus on specialized machines, while West Coast companies pour billions into humanoid development despite current limitations demonstrated at MIT.

Enter NEO, a humanoid robot created by 1X, an artificial intelligence and robotics company based in Palo Alto, California. The robot became available for preorder on Oct. 28 for $20,000 for those who want to own it, and $499 per month for anyone who wants to try it out through 1X's subscription option.

Chinese electric car company Xpeng is following in Tesla's footsteps by moving into robotaxis and humanoid robots.