I Built an AI Courtroom Simulator with Next.js and OpenAI — Here's the Full Technical Breakdown

I Built an AI Courtroom Simulator That Lets Law Students Practice Against a Judge, Prosecutor, and Witness — Here's How

When I started building LexAI I had one question: what would happen if you put three AI personas in a courtroom and let a law student argue against all of them simultaneously?

Six weeks later I had my answer — and a production app that law students are actually using.

This is the full technical breakdown of how I built it.

The Problem