I only started Duolingo recently, but I have done some work with Italian before. I'm confused: in other language programs I have heard Grazie pronounced with a slight T sound with the Z (Grat-zie, if you will), but with Duolingo I hear a slight lift on the E (Grat-zi-eh). Am I hearing things, is this a difference in dialect, or is one unanimously correct?

Thanks! (If this is confusing, spiacente!)