ChatGPT can explain categories, but it cannot see your contracts, your renewal leverage, your implementation constraints, your supplier pricing, or the vendor performance data that actually determines whether the decision works.
A category explainer is not a vendor recommendation. A familiar vendor list is not a competitive RFP. A distributor portal is not a benchmark. None of those touch the four things that actually determine whether the buyer ends up overpaying: your existing contract terms, your renewal calendar, your industry-specific compliance posture, and how comparable buyers have actually fared with the suppliers being considered.
Those are the four inputs the Method is built around. If a recommendation cannot show its work against all four, it is not a recommendation. It is an opinion in a hurry.