The AI Search Market Share Report: Who Is Eating Google's Lunch?

For over two decades, “Googling” something was synonymous with searching the internet. That is starting to change. Not dramatically (Google still dominates), but the cracks are showing, and the challengers are growing faster than anyone expected.

Let’s look at the numbers.

The Current AI Search Landscape

As of Q1 2025, here is where the major players stand in terms of monthly active users and search query volume:

Google (including AI Overviews): Still king with roughly 8.5 billion searches per day and 90%+ of traditional search market share. But their own AI features are cannibalizing traditional click-through rates.

ChatGPT Search: OpenAI’s search product has surpassed 200 million weekly active users, with an estimated 10-15% of those users relying on it as a primary search tool. We covered its launch in our post on ChatGPT Search as a real Google competitor.

Perplexity: The dedicated AI search engine hit 100 million monthly users in early 2025 and is processing an estimated 500 million queries per month. That is a 10x increase from early 2024. We tracked this milestone in our post on Perplexity hitting 100M users.

Gemini (Google): This is the interesting one. Google’s own AI chatbot is essentially competing with Google Search. Gemini has over 150 million monthly users, many of whom are using it for search-like queries instead of the traditional Google search bar.

Bing Copilot: Microsoft’s AI-powered search has pushed Bing’s market share from about 3% to roughly 5%. Not earth-shattering, but for Bing, that is a significant jump.

Where Is the Growth Coming From?

The AI search growth is not primarily stealing from Google (yet). It is expanding the total pie. People who previously would not have searched for something (because they knew Google would give them a list of blue links, not an actual answer) are now turning to AI chatbots.

But there is also a shift happening among power users. Research from Sparktoro estimates that 15-20% of digitally savvy users now use an AI tool as their first stop for information-seeking queries, up from virtually zero two years ago.

The demographics skew younger. Among users 18-34, AI search adoption is roughly double the rate of users 55+. This is a leading indicator of where the market is heading.

What Types of Queries Are Moving?

Not all search queries are moving to AI at the same rate:

High AI adoption:

• Research and comparison queries (“What is the best CRM for small business?”)
• How-to and tutorial queries (“How do I fix a leaky faucet?”)
• Recommendation queries (“Best restaurants in downtown Austin”)
• Complex multi-step questions

Low AI adoption (still Google-dominant):

• Navigation queries (“Facebook login,” “Amazon”)
• Breaking news
• Image and video search
• Very simple factual queries (“weather today”)

For small businesses, the queries moving to AI are often the high-intent ones that lead to purchases. That is why GEO optimization matters so much.

The Zero-Click Problem Is Growing

Here is the number that should concern every website owner: zero-click searches (where the user gets their answer without clicking any result) now account for an estimated 65% of all Google searches when you include AI Overviews. Without AI Overviews, it was already around 50%.

We dove deep into this trend in our post on the rise of zero-click AI answers.

This does not mean SEO is dead. It means the definition of “winning” in search is evolving. Being cited in an AI answer (even without a click) has brand awareness value. And the clicks that do come through tend to be higher intent.

Revenue Tells a Different Story

Despite all the AI hype, Google’s search ad revenue actually increased 12% year-over-year in Q4 2024. The company is still printing money. This tells us two things:

1. Google is successfully integrating ads into AI Overviews and AI Mode
2. Advertisers still see Google as the primary paid search platform

The real disruption is not in revenue (yet). It is in user behavior and expectations. People are getting used to conversational, AI-powered answers. Once that habit forms, the shift will accelerate.

What This Means for Your Business

Short term (2025): Google is still where you need to focus the majority of your SEO efforts. But ignoring AI search platforms is increasingly risky.

Medium term (2026-2027): AI search will likely account for 20-30% of all search activity. Businesses without a GEO strategy will see noticeable traffic declines.

Long term (2028+): Traditional search and AI search will likely merge into a hybrid experience. The businesses that started optimizing for both early will have a significant advantage.

Your Action Plan

1. Keep investing in traditional SEO. Google is still dominant and will be for years.
2. Start building your GEO presence. Optimize content structure, build brand signals, get listed in authoritative sources.
3. Track AI search traffic. Monitor referrals from Perplexity, ChatGPT, and Gemini in your analytics.
4. Diversify your content strategy. Create content that works for both traditional and AI search engines.

For a deeper look at where AI search is heading, check our AI search predictions for 2025.

The businesses that treat this shift as an opportunity rather than a threat will be the ones that come out ahead. The data is clear: AI search is growing. The question is whether you will grow with it.

Need help building a search strategy that covers both Google and AI? Let’s talk.