Really thoughtful post — I went through a similar debate during my own prep. I landed at 725 on the Focus Edition, and here's where I ended up on the AI question: it's great for
organizing, dangerous for
reasoning. Your point about
Error Log formatting is spot on — that kind of admin work is exactly where AI shines, and I did something similar to track my weak areas across Quant and Data Insights.
Where I'd push back a little is on using AI to "find hidden assumptions" in Critical Reasoning. The GMAT tests a very specific style of logical reasoning, and AI responses often sound convincing but miss the nuance of how the test writers construct wrong answers. I found it more helpful to build that muscle myself by doing timed CR sets and reviewing the official explanations afterward.
For Data Insights specifically — Multi-Source Reasoning and Graphs & Tables — I agree that AI struggles with the visual and cross-tab reasoning those questions demand. That's a section where drilling real practice questions matters way more than any AI shortcut.
Bottom line: use AI to save time on the boring stuff, but protect your practice time from shortcuts. The reasoning has to come from you on test day.
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