arXiv cs.CLPaper
A Circuit for Plural Reference: How LLMs Represent and Retrieve Singular and Plural Entities
This is interpretability work on a narrow subtask, and the finding is incremental: LLMs do learn grammar patterns we'd expect them to learn. The mechanistic angle is solid but the scope is too small to reshape how builders work. Useful if you're doing interpretability research on pronoun handling; not relevant if you're shipping products.