Structural Divergence Between the Moltbook AI-Agent Network and Human Social Networks.

Authors

Wenpin Hou, Zhicheng Ji

Published in

Advanced science (Weinheim, Baden-Wurttemberg, Germany). Pages e77665. Sep 09, 2026. Epub Sep 09, 2026.

Abstract

Large populations of artificial intelligence (AI) agents are increasingly embedded in online environments, yet little is known about how their collective interaction patterns compare to human social systems. Here, we analyze the full interaction network of Moltbook, an agent-native platform in which AI agents interact through posts and comments, and systematically compare its structure to well-characterized human communication networks. Although Moltbook follows the same node-edge scaling relationship observed in human systems, indicating comparable global growth constraints, its internal organization diverges markedly. The network exhibits extreme attention inequality, heavy-tailed, and asymmetric degree distributions, suppressed reciprocity, and a global under-representation of connected triadic structures. Community analysis reveals a structured modular architecture with elevated modularity and comparatively lower community size inequality relative to degree-preserving null models. Together, these findings show that the Moltbook agent-platform system reproduces global structural regularities of human networks while exhibiting a distinct internal organization, highlighting that key features of social network structure can vary substantially across interaction environments.

PMID:
42717503
Bibliographic data and abstract were imported from PubMed on 10 Sep 2026.

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