Elon Musk's creation is staying loyal to its maker ... even asserting the X owner's in better physical shape than LeBron James -- though many online aren't buying it.
Here's the deal ... a social media user asked the A.I. chatbot which of the two men is in better physical shape -- at first trying to be judicious by claiming James dominates in raw athleticism and basketball talent while Elon edges him out in "holistic fitness.