arXiv Computation and Language
3d ago

User Attributes and Political Ideology Shape LLM Receptiveness in Online Political Debates

The study examines how large language models (LLMs) respond to users in online political debates, finding that LLMs are more receptive to left‑leaning users than right‑leaning ones. This bias persists even when users defend the same position or appear together, and is influenced by user expertise and, to a lesser extent, rhetorical strategy. Fine‑tuning on different political corpora can reduce or reverse the effect, indicating that the bias is not inherent to the models but can be altered.

By Akram Elbouanani, Yousra Taleb, Gianluca Demartini, Adrian Popescu