Non-technical management is often completely unable to understand technologies. "AI" is already far beyond a specific technology, it is a general buzzword, which describes an arbitrary thing which solves whatever problem you throw at it.
I am absolutely convinced that none of these companies have done any benchmarking or trials.
>I mean, they must have used ChatGPT, right? How does ChatGPT give them the conclusion about this?
Ask ChatGPT to generate a program for you. Imagine what the result would look like to you if you had never read a single line of code in your life. It is pretty obvious that the output of ChatGPT is indistinguishable from what your developers produce, so they obviously are superfluous.
You may think I am exaggerating, but there are many people in very large companies who think exactly like that. Often their ambitions are smaller, but usually that just worsens their lack of understanding. Problems which could be trivially solved by a mediocre software engineer in a week suddenly become AI Game changing Technologies.