  This research paper presents an analysis of how well three artificial
intelligence chatbots: Bing, ChatGPT, and GPT-4, perform when answering
questions from standardized tests. The Graduate Record Examination is used in
this paper as a case study. A total of 137 questions with different forms of
quantitative reasoning and 157 questions with verbal categories were used to
assess their capabilities. This paper presents the performance of each chatbot
across various skills and styles tested in the exam. The proficiency of these
chatbots in addressing image-based questions is also explored, and the
uncertainty level of each chatbot is illustrated. The results show varying
degrees of success across the chatbots, where GPT-4 served as the most
proficient, especially in complex language understanding tasks and image-based
questions. Results highlight the ability of these chatbots to pass the GRE with
a high score, which encourages the use of these chatbots in test preparation.
The results also show how important it is to ensure that, if the test is
administered online, as it was during COVID, the test taker is segregated from
these resources for a fair competition on higher education opportunities.
