OpenToM: A Comprehensive Benchmark for Evaluating Theory-of-Mind Reasoning Capabilities of Large Language Models
On the map: LLM reasoning → Reasoning benchmarks and evaluation
Abstract (arXiv)
Neural Theory-of-Mind (N-ToM), machine's ability to understand and keep track of the mental states of others, is pivotal in developing socially intelligent agents. However, prevalent N-ToM benchmarks have several shortcomings, including the presence of ambiguous and artificial narratives, absence of personality traits and preferences, a lack of questions addressing characters' psychological mental states, and limited diversity in the questions posed. In response to these issues, we construct OpenToM, a new benchmark for assessing N-ToM with (1) longer and clearer narrative stories, (2) characters with explicit personality traits, (3) actions that are triggered by character intentions, and (4) questions designed to challenge LLMs' capabilities of modeling characters' mental states of both the physical and psychological world. Using OpenToM, we reveal that state-of-the-art LLMs thrive at modeling certain aspects of mental states in the physical world but fall short when tracking characters' mental states in the psychological world.
Key facts. Cited by 54 papers in the map (data through 14 Oct 2026). Placed in Reasoning benchmarks and evaluation, one of 17 directions in LLM reasoning. Builds on 30 of its 60 references that are in the map. First posted on arXiv 8 Feb 2024.
Builds on
30 of 60 references.
Closest ancestors · 3
Same direction, newest first
- 2023Think Twice: Perspective-Taking Improves Large Language Models' Theory-of-Mind Capabilities16 Nov
- 2023Understanding Social Reasoning in Language Models with Language Models21 Jun
- 2022Measuring and Narrowing the Compositionality Gap in Language Models7 Oct
Other references · 27
- 2017Attention Is All You Needcited by 60,361
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- 2023Sparks of Artificial General Intelligence: Early experiments with GPT-4cited by 2,592
- 2022Red Teaming Language Models with Language Modelscited by 1,026
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- 2020Towards Faithfully Interpretable NLP Systems: How should we define and evaluate faithfulness?cited by 599
- 2022ToxiGen: A Large-Scale Machine-Generated Dataset for Adversarial and Implicit Hate Speech Detectioncited by 422
- 2023SOTOPIA: Interactive Evaluation for Social Intelligence in Language Agentscited by 367
- 2015Towards AI-Complete Question Answering: A Set of Prerequisite Toy Taskscited by 314
15 more
- 2023Large Language Models Fail on Trivial Alterations to Theory-of-Mind Taskscited by 292
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- 2022Neural Theory-of-Mind? On the Limits of Social Intelligence in Large LMscited by 220
- 2023FANToM: A Benchmark for Stress-testing Machine Theory of Mind in Interactionscited by 171
- 2022SODA: Million-scale Dialogue Distillation with Social Commonsense Contextualizationcited by 168
- 2023The Generative AI Paradox: "What It Can Create, It May Not Understand"cited by 98
- 2023Minding Language Models' (Lack of) Theory of Mind: A Plug-and-Play Multi-Character Belief Trackercited by 95
- 2020The Turking Test: Can Language Models Understand Instructions?cited by 82
- 2023How FaR Are Large Language Models From Agents with Theory-of-Mind?cited by 76
- 2018Evaluating Theory of Mind in Question Answeringcited by 64
- 2023ToMChallenges: A Principle-Guided Dataset and Diverse Evaluation Tasks for Exploring Theory of Mindcited by 28
- 2023COKE: A Cognitive Knowledge Graph for Machine Theory of Mindcited by 27
- 2023The Neuro-Symbolic Inverse Planning Engine (NIPE): Modeling Probabilistic Social Inferences from Linguistic Inputscited by 23
- 2022I Cast Detect Thoughts: Learning to Converse and Guide with Intents and Theory-of-Mind in Dungeons and Dragonscited by 22
- 2023Memory-Augmented Theory of Mind Networkcited by 6
Built on by
Citing papers per year: 2024: 9; 2025: 25; 2026: 20.
54 papers.
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- 2024From Persona to Personalization: A Survey on Role-Playing Language Agentscited by 212
- 2024LLM as a Mastermind: A Survey of Strategic Reasoning with Large Language Modelscited by 99
- 2024SimpleToM: Exposing the Gap between Explicit ToM Inference and Implicit ToM Application in LLMscited by 57
- 2025Language Models use Lookbacks to Track Beliefscited by 39
- 2025The Traitors: Deception and Trust in Multi-Agent Language Model Simulationscited by 34
- 2024Explore Theory of Mind: Program-guided adversarial data generation for theory of mind reasoningcited by 33
- 2025Hypothesis-Driven Theory-of-Mind Reasoning for Large Language Modelscited by 29
- 2024Jailbreak Antidote: Runtime Safety-Utility Balance via Sparse Representation Adjustment in Large Language Modelscited by 23
- 2024Reading Subtext: Evaluating Large Language Models on Short Story Summarization with Writerscited by 19
- 2024Autonomous Agents for Collaborative Task under Information Asymmetrycited by 16
- 2025SoMi-ToM: Evaluating Multi-Perspective Theory of Mind in Embodied Social Interactionscited by 16
- 2025Rethinking Theory of Mind Benchmarks for LLMs: Towards A User-Centered Perspectivecited by 14
38 more
- 2025ToMAP: Training Opponent-Aware LLM Persuaders with Theory of Mindcited by 12
- 2025LLM-Hanabi: Evaluating Multi-Agent Gameplays with Theory-of-Mind and Rationale Inference in Imperfect Information Collaboration Gamecited by 8
- 2024Belief in the Machine: Investigating Epistemological Blind Spots of Language Modelscited by 6
- 2025R^3-VQA: "Read the Room" by Video Social Reasoningcited by 6
- 2025SVBench: Evaluation of Video Generation Models on Social Reasoningcited by 6
- 2024CreDes: Causal Reasoning Enhancement and Dual-End Searching for Solving Long-Range Reasoning Problems using LLMscited by 5
- 2025From Black Boxes to Transparent Minds: Evaluating and Enhancing the Theory of Mind in Multimodal Large Language Modelscited by 5
- 2026Evaluating Theory of Mind and Internal Beliefs in LLM-Based Multi-Agent Systemscited by 5
- 2026Social-R1: Towards Human-like Social Reasoning in LLMscited by 5
- 2025The Decrypto Benchmark for Multi-Agent Reasoning and Theory of Mindcited by 4
- 2025Enhancing Conversational Agents with Theory of Mind: Aligning Beliefs, Desires, and Intentions for Human-Like Interactioncited by 3
- 2025H2HTalk: Evaluating Large Language Models as Emotional Companioncited by 3
- 2026EnactToM: An Evolving Benchmark for Functional Theory of Mind in Embodied Agentscited by 3
- 2025InMind: Evaluating LLMs in Capturing and Applying Individual Human Reasoning Stylescited by 2
- 2026To Think or Not To Think, That is The Question for Large Reasoning Models in Theory of Mind Taskscited by 2
- 2026DPBench: Structural Determinants of Multi-Agent LLM Coordination Under Simultaneous Resource Contentioncited by 2
- 2026Beyond Words: Evaluating and Bridging Epistemic Divergence in User-Agent Interaction via Theory of Mindcited by 2
- 2026OmniToM: Benchmarking Theory of Mind in LLMs via Explicit Belief Modelingcited by 2
- 2026From Shortcuts to Reasoning: Robust Post-Training of Theory of Mind with Reinforcement Learningcited by 2
- 2025BeliefNest: A Joint Action Simulator for Embodied Agents with Theory of Mindcited by 1
- 2025Can Large Language Models Capture Human Risk Preferences? A Cross-Cultural Studycited by 1
- 2025Evaluating Contrast Localizer for Identifying Causal Units in Social & Mathematical Tasks in Language Modelscited by 1
- 2025Are Vision Language Models Cross-Cultural Theory of Mind Reasoners?cited by 1
- 2025Modeling the Mental World for Embodied AI: A Comprehensive Reviewcited by 1
- 2026Large Language Models Persuade Without Planning Theory of Mindcited by 1
- 2026Playing Along: Learning a Double-Agent Defender for Belief Steering via Theory of Mindcited by 1
- 2026Perception or Prejudice: Can MLLMs Go Beyond First Impressions of Personality?cited by 1
- 2026EUDAIMONIA: Evaluating Undesirable Dynamics in AIcited by 1
- 2026A formal definition and meta-model for a machine theory of mindcited by 1
- 2026Theory of Mind and Persuasion Beyond Conversation: Assessing the Capacity of LLMs to Induce Belief States via Planning and Actioncited by 1
- 2026Mind2Dialogue: Training Human-Aware Language Models by Simulating User Mental Statescited by 1
- 2025Sensitivity Meets Sparsity: The Impact of Extremely Sparse Parameter Patterns on Theory-of-Mind of Large Language Modelscited by 0
- 2025textttDIAMONDs: A Dataset for mathbbDynamic mathbbInformation mathbbAnd mathbbMental modeling mathbbOf mathbbNumeric mathbbDiscussionscited by 0
- 2025TimeHC-RL: Temporal-aware Hierarchical Cognitive Reinforcement Learning for Enhancing LLMs' Social Intelligencecited by 0
- 2025EvolvTrip: Enhancing Literary Character Understanding with Temporal Theory-of-Mind Graphscited by 0
- 2025Language Models Might Not Understand You: Evaluating Theory of Mind via Story Promptingcited by 0
- 2025Circuit Distillationcited by 0
- 2026CEI: A Benchmark for Evaluating Pragmatic Reasoning in Language Modelscited by 0
50 most cited of 54 All 54 (JSON)
- 2026Mind2Dialogue: Training Human-Aware Language Models by Simulating User Mental States14 Sep 2026
- 2026Using profiles of cognitive capability to assess AI suitability for workplace tasks26 Aug 2026
- 2026Theory of Mind and Persuasion Beyond Conversation: Assessing the Capacity of LLMs to Induce Belief States via Planning and Action30 Jun 2026
- 2026From Shortcuts to Reasoning: Robust Post-Training of Theory of Mind with Reinforcement Learning8 Jun 2026
- 2026A formal definition and meta-model for a machine theory of mind2 Jun 2026
- 2026MindHelper: Closed-Loop Embodied Mental-State Reasoning for Precision Intervention31 May 2026
- 2026MindZero: Learning Online Mental Reasoning With Zero Annotations29 May 2026
- 2026EUDAIMONIA: Evaluating Undesirable Dynamics in AI28 May 2026
- 2026OmniToM: Benchmarking Theory of Mind in LLMs via Explicit Belief Modeling25 May 2026
- 2026Perception or Prejudice: Can MLLMs Go Beyond First Impressions of Personality?21 May 2026
- 2026EnactToM: An Evolving Benchmark for Functional Theory of Mind in Embodied Agents11 May 2026
- 2026Playing Along: Learning a Double-Agent Defender for Belief Steering via Theory of Mind13 Apr 2026
38 more
- 2026Learning Dynamic Belief Graphs for Theory-of-mind Reasoning20 Mar 2026
- 2026Social-R1: Towards Human-like Social Reasoning in LLMs10 Mar 2026
- 2026Evaluating Theory of Mind and Internal Beliefs in LLM-Based Multi-Agent Systems24 Feb 2026
- 2026Large Language Models Persuade Without Planning Theory of Mind19 Feb 2026
- 2026CEI: A Benchmark for Evaluating Pragmatic Reasoning in Language Models14 Feb 2026
- 2026Beyond Words: Evaluating and Bridging Epistemic Divergence in User-Agent Interaction via Theory of Mind14 Feb 2026
- 2026To Think or Not To Think, That is The Question for Large Reasoning Models in Theory of Mind Tasks11 Feb 2026
- 2026DPBench: Structural Determinants of Multi-Agent LLM Coordination Under Simultaneous Resource Contention2 Feb 2026
- 2025SVBench: Evaluation of Video Generation Models on Social Reasoning25 Dec 2025
- 2025Are Vision Language Models Cross-Cultural Theory of Mind Reasoners?19 Dec 2025
- 2025Modeling the Mental World for Embodied AI: A Comprehensive Review17 Dec 2025
- 2025LLM-Hanabi: Evaluating Multi-Agent Gameplays with Theory-of-Mind and Rationale Inference in Imperfect Information Collaboration Game6 Oct 2025
- 2025Circuit Distillation29 Sep 2025
- 2025InMind: Evaluating LLMs in Capturing and Applying Individual Human Reasoning Styles22 Aug 2025
- 2025Evaluating Contrast Localizer for Identifying Causal Units in Social & Mathematical Tasks in Language Models31 Jul 2025
- 2025H2HTalk: Evaluating Large Language Models as Emotional Companion4 Jul 2025
- 2025Can Large Language Models Capture Human Risk Preferences? A Cross-Cultural Study29 Jun 2025
- 2025SoMi-ToM: Evaluating Multi-Perspective Theory of Mind in Embodied Social Interactions29 Jun 2025
- 2025The Decrypto Benchmark for Multi-Agent Reasoning and Theory of Mind25 Jun 2025
- 2025Language Models Might Not Understand You: Evaluating Theory of Mind via Story Prompting23 Jun 2025
- 2025From Black Boxes to Transparent Minds: Evaluating and Enhancing the Theory of Mind in Multimodal Large Language Models17 Jun 2025
- 2025EvolvTrip: Enhancing Literary Character Understanding with Temporal Theory-of-Mind Graphs16 Jun 2025
- 2025TimeHC-RL: Temporal-aware Hierarchical Cognitive Reinforcement Learning for Enhancing LLMs' Social Intelligence30 May 2025
- 2025ToMAP: Training Opponent-Aware LLM Persuaders with Theory of Mind29 May 2025
- 2025Language Models use Lookbacks to Track Beliefs20 May 2025
- 2025The Traitors: Deception and Trust in Multi-Agent Language Model Simulations19 May 2025
- 2025textttDIAMONDs: A Dataset for mathbbDynamic mathbbInformation mathbbAnd mathbbMental modeling mathbbOf mathbbNumeric mathbbDiscussions19 May 2025
- 2025BeliefNest: A Joint Action Simulator for Embodied Agents with Theory of Mind18 May 2025
- 2025R^3-VQA: "Read the Room" by Video Social Reasoning7 May 2025
- 2025Rethinking Theory of Mind Benchmarks for LLMs: Towards A User-Centered Perspective15 Apr 2025
- 2025Sensitivity Meets Sparsity: The Impact of Extremely Sparse Parameter Patterns on Theory-of-Mind of Large Language Models5 Apr 2025
- 2025Enhancing Conversational Agents with Theory of Mind: Aligning Beliefs, Desires, and Intentions for Human-Like Interaction20 Feb 2025
- 2025Hypothesis-Driven Theory-of-Mind Reasoning for Large Language Models17 Feb 2025
- 2024Explore Theory of Mind: Program-guided adversarial data generation for theory of mind reasoning12 Dec 2024
- 2024Belief in the Machine: Investigating Epistemological Blind Spots of Language Models28 Oct 2024
- 2024SimpleToM: Exposing the Gap between Explicit ToM Inference and Implicit ToM Application in LLMs17 Oct 2024
- 2024Jailbreak Antidote: Runtime Safety-Utility Balance via Sparse Representation Adjustment in Large Language Models3 Oct 2024
- 2024CreDes: Causal Reasoning Enhancement and Dual-End Searching for Solving Long-Range Reasoning Problems using LLMs2 Oct 2024
50 newest of 54 All 54 (JSON)
- 2024LLM as a Mastermind: A Survey of Strategic Reasoning with Large Language Modelscited by 99
- 2024Explore Theory of Mind: Program-guided adversarial data generation for theory of mind reasoningcited by 33
- 2025Hypothesis-Driven Theory-of-Mind Reasoning for Large Language Modelscited by 29
- 2025Rethinking Theory of Mind Benchmarks for LLMs: Towards A User-Centered Perspectivecited by 14
- 2025R^3-VQA: "Read the Room" by Video Social Reasoningcited by 6
- 2024CreDes: Causal Reasoning Enhancement and Dual-End Searching for Solving Long-Range Reasoning Problems using LLMscited by 5
- 2026Social-R1: Towards Human-like Social Reasoning in LLMscited by 5
- 2025The Decrypto Benchmark for Multi-Agent Reasoning and Theory of Mindcited by 4
- 2025InMind: Evaluating LLMs in Capturing and Applying Individual Human Reasoning Stylescited by 2
- 2026To Think or Not To Think, That is The Question for Large Reasoning Models in Theory of Mind Taskscited by 2
- 2025Evaluating Contrast Localizer for Identifying Causal Units in Social & Mathematical Tasks in Language Modelscited by 1
- 2025Are Vision Language Models Cross-Cultural Theory of Mind Reasoners?cited by 1
12 most cited of 15 All 15 (JSON)
- 2026MindZero: Learning Online Mental Reasoning With Zero Annotations29 May 2026
- 2026Learning Dynamic Belief Graphs for Theory-of-mind Reasoning20 Mar 2026
- 2026Social-R1: Towards Human-like Social Reasoning in LLMs10 Mar 2026
- 2026CEI: A Benchmark for Evaluating Pragmatic Reasoning in Language Models14 Feb 2026
- 2026To Think or Not To Think, That is The Question for Large Reasoning Models in Theory of Mind Tasks11 Feb 2026
- 2025Are Vision Language Models Cross-Cultural Theory of Mind Reasoners?19 Dec 2025
- 2025InMind: Evaluating LLMs in Capturing and Applying Individual Human Reasoning Styles22 Aug 2025
- 2025Evaluating Contrast Localizer for Identifying Causal Units in Social & Mathematical Tasks in Language Models31 Jul 2025
- 2025The Decrypto Benchmark for Multi-Agent Reasoning and Theory of Mind25 Jun 2025
- 2025R^3-VQA: "Read the Room" by Video Social Reasoning7 May 2025
- 2025Rethinking Theory of Mind Benchmarks for LLMs: Towards A User-Centered Perspective15 Apr 2025
- 2025Hypothesis-Driven Theory-of-Mind Reasoning for Large Language Models17 Feb 2025
12 newest of 15 All 15 (JSON)
- 2024From Persona to Personalization: A Survey on Role-Playing Language Agentscited by 212
- 2025The Traitors: Deception and Trust in Multi-Agent Language Model Simulationscited by 34
- 2024Autonomous Agents for Collaborative Task under Information Asymmetrycited by 16
- 2025LLM-Hanabi: Evaluating Multi-Agent Gameplays with Theory-of-Mind and Rationale Inference in Imperfect Information Collaboration Gamecited by 8
- 2026Evaluating Theory of Mind and Internal Beliefs in LLM-Based Multi-Agent Systemscited by 5
- 2025Enhancing Conversational Agents with Theory of Mind: Aligning Beliefs, Desires, and Intentions for Human-Like Interactioncited by 3
- 2026DPBench: Structural Determinants of Multi-Agent LLM Coordination Under Simultaneous Resource Contentioncited by 2
- 2026Beyond Words: Evaluating and Bridging Epistemic Divergence in User-Agent Interaction via Theory of Mindcited by 2
- 2025BeliefNest: A Joint Action Simulator for Embodied Agents with Theory of Mindcited by 1
- 2026Playing Along: Learning a Double-Agent Defender for Belief Steering via Theory of Mindcited by 1
- 2026Theory of Mind and Persuasion Beyond Conversation: Assessing the Capacity of LLMs to Induce Belief States via Planning and Actioncited by 1
- 2026Theory of Mind and Persuasion Beyond Conversation: Assessing the Capacity of LLMs to Induce Belief States via Planning and Action30 Jun 2026
- 2026Playing Along: Learning a Double-Agent Defender for Belief Steering via Theory of Mind13 Apr 2026
- 2026Evaluating Theory of Mind and Internal Beliefs in LLM-Based Multi-Agent Systems24 Feb 2026
- 2026Beyond Words: Evaluating and Bridging Epistemic Divergence in User-Agent Interaction via Theory of Mind14 Feb 2026
- 2026DPBench: Structural Determinants of Multi-Agent LLM Coordination Under Simultaneous Resource Contention2 Feb 2026
- 2025LLM-Hanabi: Evaluating Multi-Agent Gameplays with Theory-of-Mind and Rationale Inference in Imperfect Information Collaboration Game6 Oct 2025
- 2025The Traitors: Deception and Trust in Multi-Agent Language Model Simulations19 May 2025
- 2025BeliefNest: A Joint Action Simulator for Embodied Agents with Theory of Mind18 May 2025
- 2025Enhancing Conversational Agents with Theory of Mind: Aligning Beliefs, Desires, and Intentions for Human-Like Interaction20 Feb 2025
- 2024Autonomous Agents for Collaborative Task under Information Asymmetry21 Jun 2024
- 2024From Persona to Personalization: A Survey on Role-Playing Language Agents28 Apr 2024
- 2024SimpleToM: Exposing the Gap between Explicit ToM Inference and Implicit ToM Application in LLMscited by 57
- 2025Language Models use Lookbacks to Track Beliefscited by 39
- 2024Reading Subtext: Evaluating Large Language Models on Short Story Summarization with Writerscited by 19
- 2025SoMi-ToM: Evaluating Multi-Perspective Theory of Mind in Embodied Social Interactionscited by 16
- 2025ToMAP: Training Opponent-Aware LLM Persuaders with Theory of Mindcited by 12
- 2024Belief in the Machine: Investigating Epistemological Blind Spots of Language Modelscited by 6
- 2025SVBench: Evaluation of Video Generation Models on Social Reasoningcited by 6
- 2025H2HTalk: Evaluating Large Language Models as Emotional Companioncited by 3
- 2026EnactToM: An Evolving Benchmark for Functional Theory of Mind in Embodied Agentscited by 3
- 2026OmniToM: Benchmarking Theory of Mind in LLMs via Explicit Belief Modelingcited by 2
- 2026From Shortcuts to Reasoning: Robust Post-Training of Theory of Mind with Reinforcement Learningcited by 2
- 2025Can Large Language Models Capture Human Risk Preferences? A Cross-Cultural Studycited by 1
12 most cited of 23 All 23 (JSON)
- 2026Mind2Dialogue: Training Human-Aware Language Models by Simulating User Mental States14 Sep 2026
- 2026Using profiles of cognitive capability to assess AI suitability for workplace tasks26 Aug 2026
- 2026From Shortcuts to Reasoning: Robust Post-Training of Theory of Mind with Reinforcement Learning8 Jun 2026
- 2026A formal definition and meta-model for a machine theory of mind2 Jun 2026
- 2026MindHelper: Closed-Loop Embodied Mental-State Reasoning for Precision Intervention31 May 2026
- 2026EUDAIMONIA: Evaluating Undesirable Dynamics in AI28 May 2026
- 2026OmniToM: Benchmarking Theory of Mind in LLMs via Explicit Belief Modeling25 May 2026
- 2026EnactToM: An Evolving Benchmark for Functional Theory of Mind in Embodied Agents11 May 2026
- 2026Large Language Models Persuade Without Planning Theory of Mind19 Feb 2026
- 2025SVBench: Evaluation of Video Generation Models on Social Reasoning25 Dec 2025
- 2025Circuit Distillation29 Sep 2025
- 2025H2HTalk: Evaluating Large Language Models as Emotional Companion4 Jul 2025
12 newest of 23 All 23 (JSON)
Similar, not cited
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- 2024Probing the Robustness of Theory of Mind in Large Language Models
- 2023Clever Hans or Neural Theory of Mind? Stress Testing Social Reasoning in Large Language Models
- 2024TimeToM: Temporal Space is the Key to Unlocking the Door of Large Language Models' Theory-of-Mind
- 2024Multi-ToM: Evaluating Multilingual Theory of Mind Capabilities in Large Language Models
- 2025The Essence of Contextual Understanding in Theory of Mind: A Study on Question Answering with Story Characters
- 2026DialToM: A Theory of Mind Benchmark for Forecasting State-Driven Dialogue Trajectories
- 2025XToM: Exploring the Multilingual Theory of Mind for Large Language Models
- 2025Do Theory of Mind Benchmarks Need Explicit Human-like Reasoning in Language Models?