Wow I just tried the app with voice and the quality is amazing. It felt creepy. It is not a person I was talking to but the response time and quality is so good

Wow I just tried the app with voice and the quality is amazing. It felt creepy. It is not a person I was talking to but the response time and quality is so good and I can't help myself but think I am talking to a real person. It is eerie. Edit: Based on the response time, I don't understand where the audio is being generated, is it local?