Can AI have a personality?

In this paper, we evaluated several large language models (including ChatGPT, GPT3 and LLAMA) by running standardized personality tests on their results. Generally, we found that each large language model has an internal consistent personality. We further found that LLama tends to score more highly on Neuroticism than other models, whereas ChatGPT/GPT3 tends to score more highly on Conscientiousness and Agreeableness.