Anyone here use zappychat or chatgpt to do Ai setting in GHL?

Hi everyone! I'm just getting into GHL. Can anyone give me some more insight into how DR works with AI? Do you need an add-on? Does it work well? I also had this idea of using AI for paid ads. Think Google Ad > dynamic landing page > CTA = send us a text message. Thoughts? If that was possible, I could see that working very well. I just locked in a Plumber/HVAC client. Has anyone every integrated GHL into Service Titan?