i want you to actually give the most cheapest but the most i...

Prompt

i want you to actually give the most cheapest but the most intelligent models. see i am making an Ai App and lets say if each user uses 25m tokens in a month so how can i manage my 379 Rupees per month Lite plan so that i get 50% profit and user gets satisfied, the ai must be intelligent at knowing when to web search and when to normally chat with user