Newbie Question: ESP32 Naming Confusion & Tips for Building a Personal AI Voice Assistant

Hey everyone, I've been messing around with cloud servers for a while, and now with large language models being all the rage, I'm thinking about building my own personal AI voice assistant. From what I've seen, it seems like most people are using ESP32 combined with LLMs for this kind of project. I'm pretty new to ESP32 and don't really get the differences between models. It looks like ESP32-C3 and ESP32-S3 are both options? Can someone break down the ESP32 naming conventions for me? I checked online and saw C3, C6, P4, S3, etc., and it's honestly overwhelming.

Also, if you have any tips or advice for building a personal AI voice assistant, I'd love to hear them! I'm a total newbie, so any guidance is appreciated.