Google has prioritized rating chatbot prompt responses above rating the quality of search results, at least for some of its contract workers, since January, Insider reports. Raters are finding themselves guessing vs. assessing and verifying the chatbot responses. Search quality raters. Google has employed human raters since at least 2005 – tasking them to rate the quality of pages, websites and search results, using an extensive set of guidelines. Google contractors say they don’t have enough time to verify correct answers from the company’s AI chatbot and end up guessing via Thomas Maxwell.