Some basic reasoning it still is very bad at surprisingly. I understand it cannot plan. But for example, I used this from an IQ test - Robert is taller than Jo

Some basic reasoning it still is very bad at surprisingly. I understand it cannot plan. But for example, I used this from an IQ test - Robert is taller than John. Charlie is taller than Robert. Therefore, John is the shortest of the three. It outputs, an explanation that John necessarily is not the shortest. This was GPT 3.5, or the regular version of ChatGPT. Not sure on 4.