ChatGPT

Even AI can repeat mistakes. Here's what that means for your data.

ChatGPT analyzed three datasets and made the same mistake every time: it counted rows incorrectly and signed off on two wrong conclusions.

3 min readKDnuggets
Even AI can repeat mistakes. Here's what that means for your data.

The review pass fixed a row count and approved two wrong conclusions. That is the entire takeaway from a test where someone asked ChatGPT to analyze three datasets, and it failed consistently. The tool caught a numerical discrepancy, corrected it, and then signed off on conclusions that did not hold up. If you are using AI for data work, this is not a minor quibble. It is the difference between a helpful assistant and a confident source of misinformation.

This pattern should sound familiar to anyone who has followed the recent coverage of AI in productivity tools. We have seen similar concerns raised about verifying AI understanding during tax season, where a simple check can prevent costly errors. The reality is that these models are not failing because they are stupid. They are failing because they are optimized to please. When you ask ChatGPT to analyze data, it is not testing hypotheses against reality. It is generating text that looks like a reasonable analysis. The row count fix shows it can catch a discrete error, but the two wrong conclusions it approved reveal a deeper issue: the model does not know what it does not know. It will happily present a plausible narrative and then defend it with confidence.

For our readers, the practical implication is straightforward. Do not hand over your analysis and ask for a verdict. Do not ask, "Is this correct?" because the model will tell you yes, often with a well-structured explanation. Instead, ask it to show its work. Ask it to explain its reasoning step by step, and then verify each step yourself. This is not about distrusting the technology. It is about understanding its limits. We have written about practical guides for unlocking ChatGPT for work, and this is the core tension: the tool is powerful, but only when you treat its output as a draft, not a final answer. The moment you outsource your judgment, you have already lost the benefit of the tool.

The specific detail to watch here is the nature of the errors. A row count is a discrete, checkable fact. The model fixed it. The wrong conclusions, however, are interpretive. They require context, domain knowledge, and a willingness to say, "This does not add up." AI models are not there yet, and pretending otherwise is a risk. The next time you ask an AI to analyze a dataset, remember that it will probably get the numbers right and the meaning wrong. That is not a reason to stop using it. It is a reason to stay in the driver's seat. The question is not whether the tool will make mistakes. It will. The question is whether you will catch them before they become your conclusions.

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The review pass fixed a row count and approved two wrong conclusions.

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