A college professor used an AI teaching assistant for months, but his students didn't notice

To a class of over 300 students at the Georgia Institute of Technology, there didn't seem to be anything unusual about the new teaching assistant, Jill Watson. They never met Ms. Watson, but she always responded to emails quickly and casually. Like any good TA, Ms. Watson's involvement was low-key but helpful. "She was the person –well, the teaching assistant– who would remind us of due dates and post questions in the middle of the week to spark conversations," student Jennifer Gavin told the Journal. Some students envisioned their TA as a young PhD hopeful.