Perception or Prejudice: Can MLLMs Go Beyond First Impressions of Personality?

ArXi:2605.22109v1 Announce Type: cross Multimodal Large Language Models (MLLMs) are increasingly deployed in human-facing roles where personality perception is critical, yet existing benchmarks evaluate this capability solely on numerical Big Five score prediction, leaving open whether models truly perceive personality through behavioral understanding or merely prejudge through superficial pattern matching. We address this gap with three contributions.