The one I posted was Copilot with the enterprise data protection...

The one I posted was Copilot with the enterprise data protection activated (though I don't think that part makes a difference, just stops provided data and chat from being used for anything else). I did ask it what model it was and that was GPT-4-turbo. It also provided references as to what documents it was using to gather information from.

Interestingly enough, I also tried ChatGPT, and it's model was a newer model but it gave me incorrect dates (from 2022 I think). Although after I corrected it, it started returning the right dates. It's calculations were different again but also resulted in the same answers.

Cheers
Sil