In the rapidly evolving landscape of artificial intelligence, a pivotal question gains urgency: how do AI systems form judgments about humans? A groundbreaking study conducted by Prof. Yaniv Dover and Valeria Lerman from Hebrew University provides an illuminating perspective on this complex issue. Their research, grounded in experimental methods and extensive datasets, critically examines how state-of-the-art AI models—which include architectures resembling ChatGPT and Google’s Gemini—emulate human-like trust in their assessments, while unveiling crucial and nuanced differences. This study sheds light on the mechanisms by which AI does not merely process inputs but instead systematically evaluates human characteristics, a capability with profound implications for real-world decision-making.
The research methodology was distinctive for its empirical rigor, involving over 43,000 simulated decision-making instances combined with data from approximately one thousand human participants. The scenarios designed for these experiments mimic familiar trust assessments, encompassing financial lending decisions for small business owners, evaluations of childcare providers, assessments of supervisors, and determinations of charitable donations. This comparative framework allowed the researchers to discern patterns and divergences between human judgment and algorithmic evaluation on a scale and depth previously uncharted. It was through this meticulous approach that intriguing similarities emerged: AI systems appeared to prioritize competence and integrity, key dimensions traditionally associated with human trust, alongside benevolence.
Yet, beyond this apparent alignment lies a profound divergence in cognitive processing. Humans engage in an inherently holistic form of judgment, integrating diverse personality traits into a fluid synthesis that reflects the complexity of interpersonal trust. In stark contrast, AI models dissect trustworthiness into discrete variables, methodically scoring attributes such as competence, integrity, and kindness independently. This spreadsheet-like, rule-based evaluation framework produces consistent, but often less nuanced judgments. The rigidity inherent in machine reasoning precludes the kind of intuitive amalgamation characteristic of human evaluators, resulting in judgements that may appear cleaner, but lack the richness of contextual understanding.
The implications of this mechanistic evaluation are far-reaching, especially when applied to consequential societal domains such as finance, employment, and healthcare. A particularly alarming revelation of the study is the amplification of pre-existing biases within AI judgments. The models demonstrated a proclivity to deliver disparate outcomes based solely on demographic markers such as age, religion, and gender, even when other profile attributes were held constant. For example, older individuals were frequently favored in lending and donation scenarios, a phenomenon that raises critical questions about fairness and equality. Similarly, religious affiliation and gender introduced systematic biases, highlighting vulnerabilities in model training and the risk of perpetuating existing social inequalities through algorithmic decision-making.
Moreover, an unsettling variability emerged across different AI models. Unlike human judgment, which is inherently subjective, the study found that AI systems do not converge on a singular “opinion.” Contradictions surfaced when one model rewarded certain traits while another penalized those very same characteristics. This inconsistency underscores the importance of transparency and scrutiny in the deployment of AI, especially as choices between models can covertly influence vital life outcomes for individuals. Such variability amplifies the stakes in selecting and regulating AI decision-making frameworks, suggesting the necessity for robust validation across diverse systems.
The cognitive architecture behind these AI systems is fundamentally distinct from human cognition. AI operates through structured algorithms, often employing supervised learning and rule-based logic to generate outcomes. This architecture allows for highly repeatable and scalable judgments, but at the expense of adaptability and emotional intuition. The study illuminates how AI’s digital “trust” operates less as an empathetic bond and more as a calculated metric, optimized to classify and predict based on learned data patterns rather than genuine understanding or ethical reflection.
Furthermore, the predictability of AI’s biases presents a double-edged sword. While human biases are often inconsistent and context-dependent, AI biases show a systematic pattern, making them simultaneously easier to detect and potentially more hazardous. Systematic bias can perpetuate institutional discrimination quietly and at scale, making regulatory oversight and proactive bias mitigation strategies imperative. These findings propel an urgent conversation among ethicists, policymakers, and technologists about how to align AI judgment mechanisms with societal values and human fairness.
This study also reframes the narrative from one of trust in AI to understanding AI’s mechanisms of trust toward humans. As AI transitions from assistive to autonomous decision-maker roles, knowing how machines construct and operationalize “trust” becomes critically important. The researchers emphasize that AI is not “thinking” in human terms but adapting statistical heuristics that mimic judgment structures. Recognizing this distinction is vital to ensuring human-centered technology design and preventing unwarranted reliance on AI outputs in sensitive contexts.
The ethical dimension permeates this research, highlighting the delicate balance between leveraging AI’s strengths and mitigating its limitations. Prof. Dover and Valeria Lerman do not advocate a rejection of AI adoption, but a nuanced awareness of its capabilities and shortcomings. The study serves as a clarion call for interdisciplinary collaboration, bringing together insights from computer science, psychology, sociology, and ethics. Effective AI governance must harness this knowledge to develop systems that are transparent, equitable, and accountable, fostering trust that is not just algorithmically modeled but socially validated.
In conclusion, this pioneering research from Hebrew University provides an essential lens through which to scrutinize the evolving interface between human values and artificial judgment. It urges a paradigm shift in how we conceive and implement AI systems in social decision-making arenas. AI’s ability to replicate facets of human trust is remarkable but incomplete, bound by the limitations of rule-based logic and the specter of biased outcomes. Moving forward, the onus lies on developers, regulators, and society at large to cultivate AI frameworks that not only emulate human reasoning but do so in ways that enhance fairness, transparency, and inclusiveness.
As AI’s societal footprint expands relentlessly, the critical inquiry is no longer whether machines are trustworthy, but how humans comprehend and interact with the trustworthiness AI constructs. This study is a seminal step in unraveling that complexity, offering both hope and caution as we navigate the uncharted territory of machine-mediated human judgments.
Subject of Research: People
Article Title: A closer look at how large language models ‘trust’ humans: patterns and biases
News Publication Date: 8-Apr-2026
Web References: http://dx.doi.org/10.1098/rspa.2025.1113
References: Proceedings of the Royal Society A Mathematical Physical and Engineering Sciences
Keywords: Artificial intelligence, Logic based AI, Computational social science, Behavioral psychology, Machine learning
