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Main Authors: Bouleimen, Azza, De Marzo, Giordano, Kim, Taehee, Pagan, Nicol`o, Metzler, Hannah, Giordano, Silvia, Hannák, Anikó, Garcia, David
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2511.08592
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author Bouleimen, Azza
De Marzo, Giordano
Kim, Taehee
Pagan, Nicol`o
Metzler, Hannah
Giordano, Silvia
Hannák, Anikó
Garcia, David
author_facet Bouleimen, Azza
De Marzo, Giordano
Kim, Taehee
Pagan, Nicol`o
Metzler, Hannah
Giordano, Silvia
Hannák, Anikó
Garcia, David
contents Large Language Models (LLMs) offer new avenues to simulate online communities and social media. Potential applications range from testing the design of content recommendation algorithms to estimating the effects of content policies and interventions. However, the validity of using LLMs to simulate conversations between various users remains largely untested. We evaluated whether LLMs can convincingly mimic human group conversations on social media. We collected authentic human conversations from Reddit and generated artificial conversations on the same topic with two LLMs: Llama 3 70B and GPT-4o. When presented side-by-side to study participants, LLM-generated conversations were mistaken for human-created content 39\% of the time. In particular, when evaluating conversations generated by Llama 3, participants correctly identified them as AI-generated only 56\% of the time, barely better than random chance. Our study demonstrates that LLMs can generate social media conversations sufficiently realistic to deceive humans when reading them, highlighting both a promising potential for social simulation and a warning message about the potential misuse of LLMs to generate new inauthentic social media content.
format Preprint
id arxiv_https___arxiv_org_abs_2511_08592
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Collective Turing Test: Large Language Models Can Generate Realistic Multi-User Discussions
Bouleimen, Azza
De Marzo, Giordano
Kim, Taehee
Pagan, Nicol`o
Metzler, Hannah
Giordano, Silvia
Hannák, Anikó
Garcia, David
Computation and Language
Artificial Intelligence
Large Language Models (LLMs) offer new avenues to simulate online communities and social media. Potential applications range from testing the design of content recommendation algorithms to estimating the effects of content policies and interventions. However, the validity of using LLMs to simulate conversations between various users remains largely untested. We evaluated whether LLMs can convincingly mimic human group conversations on social media. We collected authentic human conversations from Reddit and generated artificial conversations on the same topic with two LLMs: Llama 3 70B and GPT-4o. When presented side-by-side to study participants, LLM-generated conversations were mistaken for human-created content 39\% of the time. In particular, when evaluating conversations generated by Llama 3, participants correctly identified them as AI-generated only 56\% of the time, barely better than random chance. Our study demonstrates that LLMs can generate social media conversations sufficiently realistic to deceive humans when reading them, highlighting both a promising potential for social simulation and a warning message about the potential misuse of LLMs to generate new inauthentic social media content.
title The Collective Turing Test: Large Language Models Can Generate Realistic Multi-User Discussions
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2511.08592