AI Companions and Human Emotional Well-Being: A Psychological Review of Benefits, Risks, and Future Directions

Abstract

The rapid advancement of artificial intelligence (AI) has introduced a new form of human-technology interaction through AI companions, including conversational agents, social chatbots, and emotionally responsive digital systems. Unlike traditional digital tools designed primarily for information retrieval, AI companions are developed to engage users through dialogue, personalization, and perceived social interaction. This emerging technology has generated interest within psychology because of its potential influence on emotional well-being, loneliness, social connectedness, and psychological support. The present review examines the psychological implications of AI companions by exploring their potential benefits, including emotional support, reduction of loneliness, accessibility of conversational assistance, and opportunities for self-reflection. At the same time, the review discusses possible risks, including emotional dependency, reduced human social interaction, privacy concerns, and unrealistic perceptions of machine understanding. Drawing upon theories of social interaction, attachment, and human-computer interaction, this review highlights the complex relationship between AI companionship and psychological functioning. Existing evidence suggests that AI companions may serve as supplementary tools for emotional support but should not be considered replacements for human relationships or professional psychological care. Future research should examine long-term effects, individual differences, ethical boundaries, and the psychological mechanisms underlying attachment to AI systems.