Building an AI Text Detector From Scratch
Ahead of AI Sebastian Raschka, PhD
Substack added an AI detector to its UI and the author builds a from-scratch detector tutorial to explain how such systems work and how to deploy one locally. The project implements a 0–100 scoring classifier. It produces an API and UI that return overall and chunk-level AI scores, and it’s framed as a verifier for training a small language model to avoid detection.
Why it matters
An End-to-End Project With Dataset Construction, Model Training, Local Deployment, and RLVR
