Wolfram Alpha has very much the same effect as Siri for me. Often I'll remember it exists and I will think to give it another try. But whenever I try it I get frustrated since it seems to fail on whatever I decided to attempt in that moment. It is maybe just unlucky but it is my experience. I am certain there are millions of things it can do, but for some reason the one thing I try on it always seems to fail.

On the other hand, ChatGPT does seem to give me good results the majority of the time. It certainly fails or hallucinates and I always feel I have to double check it, However, it just feels more reliable as a first stop compared to Siri or Wolfram.

I don't want to have to think "is this a query Siri can handle?" or "will Wolfram Alpha manage to work for this query?" - I just want to get a pretty good answer quickly with no hassle.

Which ChatGPT can utilize with the plugin! (although I'll admit I just go straight to the site if I need to use it)

...although ChatGPT also has a Wolfram Alpha integration

First, I would need to know such a service exists. Given that I didn't know the service exists I would have to Google for such a service. Which is exactly the point in question.

So, let's say I Google for such a service and I make it past the 3 or 4 ads at the top of the search results and however many SEO spammed sites and I get to the site you posted. I literally started writing a response to you saying "it doesn't seem to count only weekdays" but in order not to be wrong on the Internet I went back and checked and buried in the interface is a link "Count only workdays".

So, my answer to why: It was actually faster and easier using ChatGPT to get it to write Python than it would have been for me to use Google to find the site and then to use the site. If I have to do the same thing again in the future I will use ChatGPT rather than try to remember this website url or trust Google to direct me back to it.

It seems Wolfram Alpha appropriately excludes March 11th for the math folks (e.g. kind of like SQL BETWEEN, syntax convenience, etc) and Bard appropriately includes January 11th and March 11th, as that is how it would be commonly interpreted.

Edit: or not, March 11th is not a weekday. Though I count 43 weekdays including Jan 11th, so perhaps Wolfram is using an open interval while bard is using a closed interval.