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Love & Relationships

The 5 Traits Your AI Partner Will Have by 2025

New PolyU system quantifies Big Five personality types in large language models

Portrait of Julia Moreau
Relationships · September 26, 2026
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The 5 Traits Your AI Partner Will Have by 2025
The 5 Traits Your AI Partner Will Have by 2025

We spend a lot of time trying to figure out if a new partner is "the one," asking the right questions and watching for subtle cues. It turns out, you might soon need to do the same thing with the people you talk to online. Large language models (LLMs) are at the forefront of artificial intelligence, but assessing the personality of a given model remains a significant challenge. A research team at The Hong Kong Polytechnic University (PolyU) has developed an AI-driven assessment system called the Language Model Linguistic Personality Assessment (LMLPA). This system can quantitatively measure the personality traits of these models through linguistic analysis. It is a fascinating look into the nature of intelligence.

The work is led by Prof. Lik-Hang LEE, an Assistant Professor in the PolyU Department of Industrial and Systems Engineering. His research has been published in Computational Linguistics. The team uses two main components to get this done. First is the Adapted Big Five Inventory (Adapted BFI). This is a tool derived from previous language-based personality assessment theories. Second is the AI rater. This component evaluates the responses and converts textual answers into quantifiable numerical values. This innovative interdisciplinary research in AI and computational linguistics represents a critical step forward in understanding the tools we build. It helps ensure they are more aligned with human values and needs. [Link 1]

Prof. Lee explained in a recent statement, "In addressing the limitation of LLMs in capturing the cognitive and affective dimensions of human personality, our team has successfully developed novel assessment tools to evaluate LLM personalities in linguistic terms, aligning with their functional capabilities and operational paradigms." It is a sophisticated way of saying we want to know if our digital tools are grumpy, helpful, or just confused. The research opens up new possibilities of understanding and interacting with AI. By quantifying LLM personalities, their communication styles for specific applications can be tailored. This paves the way for more personalized interactions between humans and machines. It suggests that even code has character. [Link 2]

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The impact of this research stretches far beyond the classroom. The technology has promising applications in various fields like education and manufacturing. It also supports sustainable development goals. The practical application is even more interesting. Prof. Lee has translated the technological foundations of his research to create an AI-driven business compliance platform. He leverages natural language processing to analyze and interpret large volumes of textual data. This includes reports generated by LLMs. The platform uses AI technology to perform automated data collection, analysis and insight generation. This significantly streamlines the business compliance and reporting process. This highlights AI's nuanced capabilities in assessing language-based personality traits. [Link 3]

Ultimately, this work suggests that our relationship with machines is about more than just utility. It involves evaluation and alignment. Whether we are using an LLM for legal services or simply chatting with a bot, knowing its "personality" helps us navigate the interaction. The ability to measure these traits quantitatively gives us a map of the digital landscape. It is a quiet but important step in the evolution of our partnership with technology. [Link 4]

First reported by ScienceDaily: Relationships.

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