Google's AI-powered search experience continues to scale rapidly, with the company revealing that its “AI Mode” in Search now serves over 100 million monthly active users globally—predominantly in the United States and India. Additionally, Google’s AI Overviews feature is being used by more than 2 billion people per month, marking a significant milestone in the mainstream adoption of generative AI in consumer search.

The announcement corroborated across multiple sources, highlighting how Google's integration of its Gemini 2.5 Pro model into Search is reshaping user interactions with information.

Deepening AI Integration in Search

Google’s AI Mode, which offers users conversational responses, summarizations, and follow-up prompts, is built on the company’s powerful Gemini large language models (LLMs). First introduced as part of the Search Generative Experience (SGE), AI Mode has evolved into a core feature that augments traditional keyword-based search with AI-generated insights.

Initially rolled out as an experimental feature within Google Labs, AI Mode has now been integrated more broadly into the default Google Search experience for users who opt in. According to company data, it now sees over 100 million monthly active users, with India and the United States representing the largest user bases.

Google’s AI Overviews—concise, machine-generated summaries placed at the top of search results—are now accessed over 2 billion times per month, underscoring the growing consumer preference for AI-curated answers over conventional link-based search listings.

Gemini 2.5 Pro: The Engine Behind AI Mode

At the heart of this experience is Gemini 2.5 Pro, Google’s proprietary large language model, which powers AI Overviews and conversational features within Search. Gemini is optimized not just for text generation but also for deeper comprehension, reasoning, and contextual accuracy—critical traits for search-related tasks.

The integration of Gemini has enabled Google to deliver more accurate, relevant, and natural-sounding responses, which include multimedia references, citations, and personalized suggestions. In contrast to other LLM-driven products, Google’s AI Mode is deeply embedded into the search infrastructure, allowing for real-time context switching between traditional results and AI-enhanced summaries.

User Adoption Trends: India and the U.S. Lead

The adoption figures—100 million monthly active users of AI Mode and 2 billion monthly AI Overview interactions—highlight India and the U.S. as leading regions in the use of AI-enhanced Search. This aligns with broader trends showing high digital engagement and mobile-first behavior in India, along with strong early adopter dynamics in the United States.

Google has made AI Mode opt-in across multiple regions to allow for user control and feedback before broader rollout. While not yet the default for all users, the company’s focus appears to be on expanding the AI experience globally over the coming months.

Commercial and Strategic Implications

The rise of AI Overviews and AI Mode suggests a significant shift in how search engines deliver value—not just pointing users to content but generating digestible, synthesized knowledge instantly.

For marketers and content creators, this evolution could alter SEO strategies, as organic links may no longer be the primary destination. Instead, visibility within AI Overviews or as a cited source within AI summaries could become crucial.

Additionally, the deeper integration of AI into Search opens doors for new forms of monetization, advertising formats, and content partnerships tailored to AI-generated responses.

Google’s continued investment in Gemini, combined with its global reach in Search, gives it a unique position in the AI-powered information retrieval market—potentially challenging standalone AI assistants and chatbot platforms.

A Glimpse into the Future of Search

As Google experiments with even deeper AI experiences, including “Deep Search” capabilities where users can ask layered questions and receive synthesized multi-source answers, the company appears set on redefining the purpose of a search engine itself.

Earlier this year, Alphabet CEO Sundar Pichai described the evolution as a “fundamental reimagining of Search,” one where large language models are not just an add-on but the backbone of the search pipeline.

While challenges remain—including accuracy, trust, and the impact on publishers—Google’s latest figures indicate that users are embracing this shift. With 100 million users now actively engaging with AI Mode and over 2 billion monthly interactions with AI Overviews, the generative AI revolution in Search is no longer a niche experiment—it’s a global reality.