Google has expanded its AI Mode feature in Search to India and the United Kingdom, following its initial rollout in the United States. The AI Mode, powered by a custom version of Google's Gemini 2.5 Pro model, enables users to ask longer and more complex questions and provides enhanced research capabilities through a technique called "query fan-out." In India, the feature was first introduced in English and initially available to limited users before being rolled out to all users without requiring signup. The AI Mode also includes new functionalities such as Deep Search, which helps save research time, and an AI-powered calling feature that can contact local businesses to check pricing. This calling capability is currently available to all users in the U.S. and is part of the advanced AI features integrated into Google Search. The rollout in the UK brings the AI Mode as an optional tab within the search results page and the search bar on the Google app for Android and iOS. Google aims to provide more conversational answers through this feature, although it may result in fewer direct links in search results. The introduction of AI Mode in these international markets marks Google's effort to enhance the search experience globally by leveraging its most advanced AI models and agentic capabilities.