how ai grading cut a course cohort's time 70%
an anonymized case study: an online course company cut grading time 70% per cohort with rubric-driven ai grading. instructor-quality nps held steady.
this post. one anonymized result. an online education company running 4-month live cohorts cut grading time per cohort by 70%. the ai scores each assignment on the client's own rubric. a person still handles the calls that need judgment.
the buyer here is a head of learning at an online course company. the cohorts are live and 4 months long. every assignment gets graded by hand. that work eats instructor hours, and instructor hours are the biggest line in the cohort's cost. margin leaks one submission at a time.
the fear was quality. drop a tool on the pile and grading gets faster and worse. the instructors said so out loud. so we did not replace them. we shipped an lms extension that scores assignments on their rubric and shows every score in a sample-audit dashboard.
does ai grading make online courses cheaper without making them worse?
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