OpenAI has announced a major upgrade to the SearchGPT search feature built into ChatGPT, with the most important change being an expansion of the number of sources cited in each search answer from an average of 3-5 to as many as 10, with citation counts for some complex queries even reaching 15. This change carries significant implications for SEO and GEO practitioners: more available citation slots means more websites have the opportunity to be cited by SearchGPT, easing the traffic-concentration effect. SearchGPT's source-selection logic has been updated accordingly: for a given topic, it now prioritizes citing multiple sources that offer different angles rather than repeatedly citing the same website, and authoritative content with a distinctive perspective gains a greater chance of being cited. GEO optimization experts recommend that websites focus on providing differentiated, in-depth content on specific niche topics rather than broad content that tries to cover everything, in order to stand out within SearchGPT's multi-source citation mechanism.