Run oral final exams with a voice agent
A professor used a voice agent to examine 36 students over 9 days, with an LLM council grading transcripts and surfacing class-wide gaps.
Done with Gemini
What they did
Professor ran oral exams on student projects via voice agent, with LLM council grading transcripts after deliberation. It examined 36 students over 9 days at ~25 min each, producing full transcripts and audit trails.
How it went
Total cost $15 (~$0.42/student). Exposed class-wide A/B testing gap; 13% of students preferred the AI oral format.
Worth knowing
Reported figures include 13% - check the source for the full breakdown.
Try it yourself with Gemini
Help me set up oral exams for [course name] with [number] students. Write a voice-interview script that asks [number] questions on [topics], follows up on vague answers, and records a transcript for each student. Then grade each transcript against this rubric: [rubric] and summarize which concepts the whole class struggled with. Show me the grading for review before anything is shared with students.
Source on X - Jan 2, 2026
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