LLMs and people both learn to form conventions -- just not with each other

Fuente: arXiv
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Autori principali: Jones, Cameron R., Lombardi, Agnese, Mahowald, Kyle, Bergen, Benjamin K.
Natura: Preprint
Pubblicazione: 2026
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author Jones, Cameron R.
Lombardi, Agnese
Mahowald, Kyle
Bergen, Benjamin K.
author_facet Jones, Cameron R.
Lombardi, Agnese
Mahowald, Kyle
Bergen, Benjamin K.
contents Humans align to one another in conversation -- adopting shared conventions that ease communication. We test whether LLMs form the same kinds of conventions in a multimodal communication game. Both humans and LLMs display evidence of convention-formation (increasing the accuracy and consistency of their turns while decreasing their length) when communicating in same-type dyads (humans with humans, AI with AI). However, heterogenous human-AI pairs fail -- suggesting differences in communicative tendencies. In Experiment 2, we ask whether LLMs can be induced to behave more like human conversants, by prompting them to produce superficially humanlike behavior. While the length of their messages matches that of human pairs, accuracy and lexical overlap in human-LLM pairs continues to lag behind that of both human-human and AI-AI pairs. These results suggest that conversational alignment requires more than just the ability to mimic previous interactions, but also shared interpretative biases toward the meanings that are conveyed.
format Preprint
id arxiv_https___arxiv_org_abs_2602_08208
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle LLMs and people both learn to form conventions -- just not with each other
Jones, Cameron R.
Lombardi, Agnese
Mahowald, Kyle
Bergen, Benjamin K.
Computation and Language
Human-Computer Interaction
I.2.7; H.5.2
Humans align to one another in conversation -- adopting shared conventions that ease communication. We test whether LLMs form the same kinds of conventions in a multimodal communication game. Both humans and LLMs display evidence of convention-formation (increasing the accuracy and consistency of their turns while decreasing their length) when communicating in same-type dyads (humans with humans, AI with AI). However, heterogenous human-AI pairs fail -- suggesting differences in communicative tendencies. In Experiment 2, we ask whether LLMs can be induced to behave more like human conversants, by prompting them to produce superficially humanlike behavior. While the length of their messages matches that of human pairs, accuracy and lexical overlap in human-LLM pairs continues to lag behind that of both human-human and AI-AI pairs. These results suggest that conversational alignment requires more than just the ability to mimic previous interactions, but also shared interpretative biases toward the meanings that are conveyed.
title LLMs and people both learn to form conventions -- just not with each other
topic Computation and Language
Human-Computer Interaction
I.2.7; H.5.2
url https://arxiv.org/abs/2602.08208