I Built an AI Tutor in 48 Hours and Heres What Blew My Mind

okay so I need to be honest with you — when I first started looking into building an AI tutoring app I was kinda overwhelmed. there are literally 184 models available through Global API, and prices ranging from $0.01 to $3.50 per million tokens. how is anyone supposed to figure this out without spending three weeks reading documentation?

thats basically why im writing this. I went down the rabbit hole, ran a bunch of benchmarks, broke things, fixed things, and now im gonna share everything I learned. fair warning — I get opinionated, I use too many caps when something excites me, and I write like I talk. if that bugs you, well, theres the back button.

Why I Even Cared About Building a Tutor App

heres the thing. AI education tools in 2026 are kinda having a moment. parents want their kids to have a personalized tutor that doesnt cost $80/hr. students want homework help that doesnt just give them answers but actually explains stuff. and honestly? the market is RIPE for it.