Myers-Briggs is pattern recognition that gives a surface-level measurement of 4 traits. The weakness of the test is not that it cannot produce an answer, it is

Myers-Briggs is pattern recognition that gives a surface-level measurement of 4 traits. The weakness of the test is not that it cannot produce an answer, it is that the answer is useless. It changes day-to-day as people change day-to-day and it over-simplifies people across 4 traits. But ChatGPT can work from a static history of chats, avoiding change (assuming you are just asking once). And it excels at such surface-level categorization of content. So even if MBTI is useless, the ability of ChatGPT to offer an equally useless answer of your type is not at all surprising.