Artificial Intelligence and Grade Inflation (cshe.berkeley.edu)

A recent analysis focused on the influence of generative AI tools on grade inflation at a large research university has revealed significant findings. By examining over 500,000 grades from 2018 to 2025, researchers utilized a difference-in-differences design and discovered that courses with tasks heavily exposed to AI, such as writing and coding, experienced notable grade increases following the launch of ChatGPT. Specifically, the proportion of A grades surged by 13 percentage points—approximately a 30% increase compared to the 2022 baseline—especially in assignments where homework exerted greater influence on final grades. This trend raises important questions about the integrity of academic evaluations and the potential for AI to undermine the value of grades as indicators of student understanding and capability. The findings suggest that rather than fostering genuine learning, AI tools may be substituting for original student work, particularly in assignments where AI assistance is more easily applied. This underscores the need for educational institutions to reassess grading practices and consider the implications of widespread AI usage on academic integrity and student learning outcomes.