SoMi-ToM: Evaluating Multi-Perspective Theory of Mind in Embodied Social Interactions

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Main Authors: Fan, Xianzhe, Zhou, Xuhui, Jin, Chuanyang, Nottingham, Kolby, Zhu, Hao, Sap, Maarten
Format: Preprint
Published: 2025
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author Fan, Xianzhe
Zhou, Xuhui
Jin, Chuanyang
Nottingham, Kolby
Zhu, Hao
Sap, Maarten
author_facet Fan, Xianzhe
Zhou, Xuhui
Jin, Chuanyang
Nottingham, Kolby
Zhu, Hao
Sap, Maarten
contents Humans continuously infer the states, goals, and behaviors of others by perceiving their surroundings in dynamic, real-world social interactions. However, most Theory of Mind (ToM) benchmarks only evaluate static, text-based scenarios, which have a significant gap compared to real interactions. We propose the SoMi-ToM benchmark, designed to evaluate multi-perspective ToM in embodied multi-agent complex social interactions. This benchmark is based on rich multimodal interaction data generated by the interaction environment SoMi, covering diverse crafting goals and social relationships. Our framework supports multi-level evaluation: (1) first-person evaluation provides multimodal (visual, dialogue, action, etc.) input from a first-person perspective during a task for real-time state inference, (2) third-person evaluation provides complete third-person perspective video and text records after a task for goal and behavior inference. This evaluation method allows for a more comprehensive examination of a model's ToM capabilities from both the subjective immediate experience and the objective global observation. We constructed a challenging dataset containing 35 third-person perspective videos, 363 first-person perspective images, and 1225 expert-annotated multiple-choice questions (three options). On this dataset, we systematically evaluated the performance of human subjects and several state-of-the-art large vision-language models (LVLMs). The results show that LVLMs perform significantly worse than humans on SoMi-ToM: the average accuracy gap between humans and models is 40.1% in first-person evaluation and 26.4% in third-person evaluation. This indicates that future LVLMs need to further improve their ToM capabilities in embodied, complex social interactions.
format Preprint
id arxiv_https___arxiv_org_abs_2506_23046
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SoMi-ToM: Evaluating Multi-Perspective Theory of Mind in Embodied Social Interactions
Fan, Xianzhe
Zhou, Xuhui
Jin, Chuanyang
Nottingham, Kolby
Zhu, Hao
Sap, Maarten
Computation and Language
Artificial Intelligence
Computer Vision and Pattern Recognition
Robotics
Humans continuously infer the states, goals, and behaviors of others by perceiving their surroundings in dynamic, real-world social interactions. However, most Theory of Mind (ToM) benchmarks only evaluate static, text-based scenarios, which have a significant gap compared to real interactions. We propose the SoMi-ToM benchmark, designed to evaluate multi-perspective ToM in embodied multi-agent complex social interactions. This benchmark is based on rich multimodal interaction data generated by the interaction environment SoMi, covering diverse crafting goals and social relationships. Our framework supports multi-level evaluation: (1) first-person evaluation provides multimodal (visual, dialogue, action, etc.) input from a first-person perspective during a task for real-time state inference, (2) third-person evaluation provides complete third-person perspective video and text records after a task for goal and behavior inference. This evaluation method allows for a more comprehensive examination of a model's ToM capabilities from both the subjective immediate experience and the objective global observation. We constructed a challenging dataset containing 35 third-person perspective videos, 363 first-person perspective images, and 1225 expert-annotated multiple-choice questions (three options). On this dataset, we systematically evaluated the performance of human subjects and several state-of-the-art large vision-language models (LVLMs). The results show that LVLMs perform significantly worse than humans on SoMi-ToM: the average accuracy gap between humans and models is 40.1% in first-person evaluation and 26.4% in third-person evaluation. This indicates that future LVLMs need to further improve their ToM capabilities in embodied, complex social interactions.
title SoMi-ToM: Evaluating Multi-Perspective Theory of Mind in Embodied Social Interactions
topic Computation and Language
Artificial Intelligence
Computer Vision and Pattern Recognition
Robotics
url https://arxiv.org/abs/2506.23046