Alphabet's Q3 2026 Search and other revenue outlook centers on the resilience of its core advertising business amid AI-driven changes. In Q2, Search and other revenue reached $63.3 billion, rising 17% year over year, supported by AI Overviews and AI Mode features that have expanded query volumes and improved ad relevance across retail and financial verticals. Traders are watching whether these tools sustain momentum against competition from large language model chatbots, with recent surveys showing Google maintaining strong user preference as the primary search engine. Google Cloud's rapid growth and elevated capital spending provide indirect context, but Search remains the dominant profit engine. Earnings on October 28 will reveal if ad pricing and engagement trends hold, with analyst consensus pointing to continued double-digit expansion for the segment.