Google Sheets is adding web-source citations to individual cells filled with Gemini, giving you a more direct way to check where an AI-generated answer came from. The useful change is the connection between a particular value and its evidence: you can inspect the answer that looks questionable without treating the whole spreadsheet as one undifferentiated AI response.
That matters when a research sheet becomes somebody else's reference document. A tidy column of answers can look finished long before anyone has checked whether the sources describe the right product, location or period. The new links make that check easier to start. They don't finish it for you.
Google's cell-citation announcement says the citations are available in Sheets on the web. Its gradual rollout began October 20, with up to 15 days allowed for visibility. Access depends on an eligible plan, including Business Standard or Plus, Enterprise Standard or Plus, Google AI Pro or Ultra, and the listed education and expanded-access add-ons. This isn't a promise that every free Google account has the feature.
Check the answer before copying the column
The AI-function help page explains the route: click into a cell, hover over its content and select Sources. It also warns that Gemini can produce inaccurate information. The AI function doesn't automatically see your entire spreadsheet or other Drive files; relevant sheet data needs to be supplied through its optional range argument.
For a practical first check, imagine a shortlist of places to hold a small event. You might ask for each venue's capacity and accessibility information. Before sharing that sheet, open the evidence behind the entries you plan to rely on. Does the page describe that exact venue? Is the capacity for the room you want, or the whole building? Does accessibility mean step-free entry, an accessible washroom, or something less specific?
I'd keep a separate review column for those distinctions. Mark an answer checked only after the cited material supports the particular claim, and leave unresolved entries visibly unresolved. That way a colleague can see which rows are ready to use rather than assuming that a source link means approval.
Start with a small selection of rows and review the results before expanding the task. If several answers share the same ambiguity, tighten the question first. A spreadsheet filled faster is useful only when the next person can understand what its answers actually mean.