Do LLMs Have Stable Personalities? Testing the Big Five Across AI Models
When we anthropomorphize AI, are we projecting—or detecting something real? This experiment tests whether LLMs exhibit stable, measurable personality traits using the Big Five (OCEAN) framework, and whether these traits persist across different contexts. The Big Five Framework The Big Five personality traits are: Openness: Creativity, curiosity, openness to experience Conscientiousness: Organization, dependability, self-discipline Extraversion: Sociability, assertiveness, positive emotions Agreeableness: Cooperation, trust, altruism Neuroticism: Emotional instability, anxiety, moodiness Experiment Design We administered a 10-item Big Five inventory (2 items per trait) to 4 models under 4 conditions:...