Ethan Mollick says recent LLMs invent fewer citations but stay sycophantic

Ethan Mollick says a mass replication of earlier LLM studies found that recent models no longer invent citations, and that their hallucination and stereotyping rates have dropped.

In the same post, he says these models remain sycophantic and lean left. The report is a single X post by Mollick; it does not give the replication's authors, sample, or the models tested.