I have built tons of Ai Agents using Openai, Claude, Gemini, and a handful of other ones. The Ai agents were voice receptionist, order takers/placers, customer support etc.

Now as I am building my 2nd app, i've come to realize that a lot more goes into training and distilling models. It can get pretty expensive if you have no idea what you are doing, as i'm doing more and learning more, i've come to the conclusion, those who integrate well with 3rd parties, I prefer to use.

Example, Supabase, Vercel AI SDK5, OpenAI, Assistant UI for UI and tooling, life can't get much easier.