It's certainly different this time; machines have never been able to do anything like what they can do now. You might as well argue that the Industrial Revolution or the Internet itself wasn't "different this time."

But the phrase "this time" requires a lot of hand-waving. The current generation of models is obviously a bubble, which means that businesses based on them are also participants in a bubble. The market seems to be pricing in various unspecified future miracles. Given the history of AI to date, the miracles needed to justify current valuations might arrive next week, next year, or 30 years from now.

They will arrive, though. That part is no longer up for debate by anyone who's been paying attention since AlphaGo, never mind Vaswani.