MBTI Guide is a GPT designed to facilitate self-exploration of the user's personality type using the Myers Briggs Type Indicator (MBTI) framework. The tool guides users through a carefully structured series of questions, aimed at deciphering their so-called Cognitive Functions. This user interaction-based assessment process informs conclusions about the user's personality type, which consist of a four-letter abbreviation representing fundamental aspects of their personality. Therefore, this tool can serve as an avenue for people who are interested in discovering their MBTI type and seek insights into their behavioral tendencies, decision making, and overall personality makeup. Furthermore, it also provides support on easy comprehension of the MBTI framework and guides on how to identify others' personality types based on their behaviors and discussion points. Users can ask questions to get a clearer understanding of MBTI, inquire about a friend's personality type based on shared conversations, request assistance in assessing their own personality type, and seek advice on the accuracy of online testing. To utilize this service, users are required to have access to the ChatGPT Plus platform, which is a subscription-based service.