r-project.org VS.

posit.co

You've probably tried using a general-purpose AI chatbot for data analysis at some point. And it probably worked — until it didn't. The issue isn't capability. It's context. Browser-based tools can't see your loaded packages, your dataframe schema, or the specific error you're staring at. So they generate responses that are plausible in the abstract but wrong for your actual project. For exploratory work, that's annoying. For production analysis, it's a real problem.