I just passed my PMP exam this week, and I used ChatGPT quite a bit along with Claude during my preparation. I ran into exactly what you’re describing. AI was most useful for spotting patterns in my mistakes, not grading answer keys. I uploaded my practice exam results and had it analyze the questions I missed. The night before my exam, I narrowed those down to 14 questions where I most questioned the answers or struggled with the reasoning. Looking at those questions together, we noticed recurring patterns: I sometimes reached for predictive tools in agile situations, focused on internal team processes when the problem was really client satisfaction, or jumped toward a solution before fully understanding what the question was asking. That was far more valuable than arguing over any individual answer. When AI and an answer key disagree, don’t treat it like a court case. Some practice questions are genuinely ambiguous, and two answers can represent different parts of a reasonable sequence. There was one posted by someone else here I was also following where AI and I favored C, but Andrew’s answer was B. Understanding why B was the intended answer, while recognizing why C was appealing, taught me more than trying to prove either one was right. A few things I’d suggest: - Ask AI to make the strongest case for both answers, rather than trying to convince it you’re right. AI can be overly agreeable, especially when you challenge its initial response. - Use AI to identify patterns across multiple missed questions. Are you missing concepts, misreading the question, or selecting a reasonable action that isn’t the best next action? - Keep your course and PMI principles as your foundation. AI is a tutor and thinking partner, not an authoritative answer key. - Don’t spend too long debating ambiguous questions. Understand the principles involved and move on. One of the most helpful habits I developed was asking myself three things before answering: Is this predictive, agile, or hybrid? What exactly is being asked? Who owns the problem?