United States
Georgia Institute of Technology
Jill Watson is the 2016 original virtual TA: 24/7 Q&A on approved courseware, late-night problem scaffolding, an office-hours substitute. The GPT-era version ran in several GT classes (about 1,300 students) plus two Technical College System of Georgia colleges.
New in 2026: expansion to more courses, and SMART Tutor in ECE 2040 (50-student optional pilot, grounded only in course materials). Machine, academic. No institutional pastoral bot found. Human TAs remain; the bot takes the midnight queue.
Source: C21U, 3 August 2026