readability alignment

Classroom AI: large language models as grade-specific teachers

Jio Oh, Steven Euijong Whang, James Evans, Jindong Wang

npj Artificial Intelligence

A 2026 study fine-tuned language models for six educational levels and improved grade-alignment success by 35.64 percentage points over prompting, but its 208 raters were not representative of learners across the target grade bands and the work did not test classroom learning.