I think you need just the right combo of task and worker to actually see a notable speed improvement from it... unless the job is "write huge amounts of bullshit", which some jobs truly are (astroturfing, certain kinds of advertising or marketing, scams).
[EDIT] I should add that this isn't preventing them from hyping the effects externally. I'd be wary of companies' claims re: the effectiveness of AI. They're all afraid of being seen as having missed the train, even if the train's not really going where they need to go.
ChatGPT wrote the function perfectly on the first shot, but then I realized it was only working most of the time -- turned out ChatGPT had done a really obvious off-by-one error in the loop, and it was breaking on (1/n) attempts where n is the size of the list.
It's exactly the same as how ChatGPT usually knows what formulas and approaches to take when solving graduate-level mathematics, and its reasoning about the problem is pretty good, but it can't get the right answer because it can't add integers reliably.
Something that experienced (and expensive) programmers are good at, incidentally.
Full transparency: I think I'm one of those bad programmers who is a good debugger, but I've also been a full-time Linux nerd since Ubuntu 8.04, so I'm very comfortable reading error messages.
And writing code is the easy part. Architecting is where things get tricky and there are a lot of subjective decisions to be made. That's where soft skills become really important.
Same with my junior devs
If you are going to use ChatGPT for writing, you would have to hire an army of fact-checkers, because it can literally fake citations.
She caught a dozen or so of her students cheating (via chatgpt) by looking for hallucinated papers in the bibliographies.
I think AI chatbots will do much like what, say, engineering modeling tools have done for engineering: do 80% of the grunt work for you, and only require human supervision.
It's ultimately a good thing for writing, because writing will be less expensive to produce. The downside is probably SEO spam, but it is what it is.