AI Overviews Statistics 2026: Google Search Impact Data

Google AI Overviews now trigger on approximately 48% of all tracked search queries, about a 58% year-over-year increase from February 2025, per BrightEdge data. The feature spans more than 200 countries and territories in over 40 languages, per Google’s official expansion update. These AI overview statistics capture a feature that has reshaped how billions of users interact with Google usage data, altering click-through rates, publisher traffic, and advertising economics in the process.

Semrush tracked more than 10 million keywords throughout 2025, documenting AI Overview prevalence climbing from about 6.49% in January to a peak of roughly 24.61% in July before settling at nearly 15.69% by November. Seer Interactive’s 2026 update, covering approximately 53 brands and 5.47 million tracked queries, found organic CTR on AI Overview queries rebounded from a floor of 1.3% in December 2025 to 2.4% in February 2026. The AI overviews statistics below draw from these and other primary datasets to map adoption, CTR impact, citation patterns, and publisher traffic shifts.

Key Takeaways

• AI Overviews appear on approximately 48% of tracked queries as of about February 2026, up from 31% a year earlier, BrightEdge found.
• Organic click-through rates dropped 61% (from 1.76% to 0.61%) on queries with AI Overviews present, according to Seer Interactive’s September 2025 study.
• Brands cited in AI Overviews earn approximately 120% more organic clicks per impression than uncited brands on the same queries, per Seer Interactive’s 2026 analysis.
• Google search referral traffic to publishers declined globally by about a third in the year to November, according to Press Gazette.
• YouTube accounts for approximately 23.3% of all AI Overview citations, followed by Wikipedia at 18.4%, based on Surfer SEO’s analysis of 46 million citations.
• Google Search revenue reached $63.07 billion in Q4 2025, up 17% year over year, while GenAI product revenue surged nearly 400%, per Alphabet’s earnings release.
• Ads alongside AI Overviews grew from about 3% of SERPs in January 2025 to roughly 40% by November, with approximately 25% at the bottom and over 394% growth in combined ad-plus-AIO SERPs, per Semrush.

Editor’s Choice

• AI Overviews grew approximately 58% year over year in query presence, with about 17% of cited sources also ranking in the organic top 10, per BrightEdge’s Generative Parser tracking across 9 industries.
• Paid CTR on AI Overview queries crashed 68% (from 19.70% to 6.34%), per Seer data.
• Alphabet’s annual revenues exceeded $400 billion for the first time, with GenAI products posting nearly 400% revenue growth year over year, per the Q4 2025 earnings release.
• The average AI Overview box height grew approximately 15% to about 1,200 pixels, exceeding the standard 900-pixel desktop viewport, according to BrightEdge tracking.
• AI Overview citation overlap with organic rankings grew from 32.3% to 54.5% (+22.3 percentage points), with Insurance at approximately 63%, BrightEdge found.
• Google AI Mode reached 75 million users by December 2025, with generative AI product revenue growing nearly 400%, per Alphabet’s Q4 2025 earnings.
• Total search impressions increased approximately 49% since the AI Overviews launch, with click-throughs declining nearly 30% and Google maintaining over 90% market share, per BrightEdge’s one-year analysis.

Recent Developments

• In April 2026, BrightEdge released data predicting that most online customers will interact through AI agents by the end of this year, as the AI Overview query presence reached approximately 48%.
• In February 2026, Alphabet reported that Google Search revenue reached $63.07 billion in Q4 2025, a 17% year-over-year increase, while annual revenue exceeded $400 billion for the first time, and GenAI products saw nearly 400% revenue gains.
• Seer Interactive published its 2026 update showing organic CTR on AI Overview queries climbed from a floor of 1.3% in December 2025 to approximately 2.4% in February 2026, reversing an 18-month decline trend.
• In September 2025, Penske Media Corporation filed an antitrust lawsuit against Google, claiming it abuses its search monopoly to force publishers to allow content use in AI Overviews.
• In May 2025, Google deployed a custom version of Gemini 2.5 to power AI Overviews in the U.S., making the feature available in more than 200 countries and over 40 languages.

AI Overviews: Adoption and Growth Rate

• AI Overview prevalence started at about 6.49% of keywords in January 2025, per Semrush’s study of more than 10M search terms, with nearly 60% being roughly niche-level keywords (those with 100 or fewer monthly searches).
• Prevalence peaked at roughly 24.61% of queries in July 2025 before declining to about 15.69% by November 2025, per Semrush’s tracking of more than 10M terms, with nearly 60% having under 100 monthly searches.
• BrightEdge measured AI Overview presence at approximately 31% of tracked queries in February 2025, rising to about 48% by February 2026.
• Longer, complex queries grew approximately 49% in AI Overview representation since May 2024, even as overall click-throughs fell nearly 30% despite Google holding over 90% search share, according to BrightEdge.
• By May 2025, AI Overviews became available in more than 200 countries and territories and over 40 languages, according to Google.
• Google reported AI Overviews drive over a 10% increase in search usage for query types that show them in more than 200 countries and territories, including the U.S. and India.
• Google maintained over 90% search market share one year into the AI Overviews rollout, while competitors stayed approximately one-tenth of ChatGPT‘s size, and click-throughs dropped nearly 30%, according to BrightEdge data.
• Peak AI Overview box height reached approximately 1,340 pixels in December 2025, falling to about 1,200 pixels by February 2026, based on BrightEdge tracking.

Source: Semrush, BrightEdge, Google

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AI Overviews: Click-Through Rate Impact

• Organic CTR on queries with AI Overviews dropped from 1.76% to 0.61%, a 61% decline, across 3,119 search terms tracked by Seer from June 2024 through September 2025.
• Paid CTR on AI Overview queries fell from 19.70% to 6.34%, a 68% decline over that period, per Seer’s analysis.
• Organic CTR on queries without AI Overviews also declined, from 2.74% to 1.62%, a 41% drop, per that Seer data.
• The CTR decline reversed in early 2026, with organic CTR on AI Overview queries climbing from a floor of 1.3% in December 2025 to approximately 2.4% in February 2026, per the latest Seer update.
• Seer Interactive’s 2026 study covered approximately 53 brands, 5.47 million tracked queries, and 2.43 billion organic impressions.
• Paid CTR on AI Overview queries stayed in a consistent 13 to 16% range throughout 2025 and into 2026, according to Seer data.
• Click-throughs declined nearly 30% since the May 2024 AI Overviews launch, while Google kept over 90% share and rivals remained approximately one-tenth of ChatGPT’s traffic, according to BrightEdge.

By the numbers: According to Seer Interactive’s 2026 update covering 53 brands, organic CTR on AI Overview queries rebounded from a floor of approximately 1.3% in December 2025 to 2.4% in February 2026, an 85% increase in two months that contradicts the prevailing narrative of permanent CTR erosion.

Source: Seer Interactive

AI Overviews by Search Intent and Query Type

• Informational queries trigger AI Overviews 36% of the time, while commercial queries trigger them only 8% and transactional queries 5%, per Seer Interactive’s analysis of 49,353 queries.
• Comparison queries (X vs Y format) trigger AI Overviews 95.4% of the time, per that Seer study.
• Question-format queries trigger AI Overviews at 85.9%, review queries at 86.3%, and “near me” informational queries at 76.9%, according to Seer data.
• Single-word queries trigger AI Overviews only 27.3% of the time, creating a 7x gap between informational and transactional trigger rates, per the Seer analysis.
• Semrush documented, from its study of more than 10M keywords, that informational queries dropped from about 91.3% of AI Overview triggers in January 2025 to roughly 57.1% by October 2025, with ads rising to nearly 40% of SERPs.
• Commercial queries rose from about 8.15% to 18.57%, transactional from roughly 1.98% to 13.94%, and navigational from 0.84% to 10.33% over that period, based on more than ten million terms tracked by Semrush, with nearly 60% having fewer than 100 monthly searches.
• Keywords triggering AI Overviews tend to be longer and more specific, with nearly 60% having 100 or fewer monthly searches from a pool of more than ten million tracked keywords, while ads grew from about 3% to roughly 40% of SERPs, according to Semrush.

AI Overviews Citation and Source Patterns

• YouTube accounts for approximately 23.3% of all AI Overview citations across industries, followed by Wikipedia at approximately 18.4% and Google.com at approximately 16.4%, per Surfer SEO’s analysis of 36 million AI Overviews and 46 million citations.
• Only about 17% of sources cited in AI Overviews also rank in the organic top 10 for the same query, from approximately 31% AIO presence in February 2025, per BrightEdge analysis.
• Top-100 organic overlap with AI Overview citations ranges from approximately 48.7% to about 53.1%, per BrightEdge data from February through July 2025.
• In the health vertical, NIH dominates AI Overview citations at approximately 39%, followed by Healthline at approximately 15% and Mayo Clinic at approximately 14.8%, according to Surfer SEO.
• Gaming citations show extreme platform concentration, with YouTube at approximately 93% and Reddit at approximately 78%, per Surfer SEO.
• Finance citations spread across YouTube (approximately 23%), Wikipedia (approximately 7.3%), LinkedIn (approximately 6.8%), and Investopedia (approximately 5.7%), per Surfer SEO.
• AI Overview citation overlap with organic rankings rose from 32.3% to 54.5% (+22.3 pp), with Insurance at approximately 63%, but individual industries vary widely, from eCommerce’s flat 0.6 pp change to Education’s 53.2 pp surge, based on BrightEdge data.

Key finding: According to Surfer SEO’s analysis of 36 million AI Overviews, YouTube leads all citation sources at approximately 23.3% across industries, while only about 17% of cited domains also rank in the organic top 10, from approximately 31% AIO prevalence a year earlier, BrightEdge found. Traditional SEO rankings have limited influence on AI Overview source selection, creating a separate visibility channel.

AI in social media data shows a similar AI-driven redistribution of visibility across platforms.

AI Overviews Impact by Industry

• Healthcare leads all industries with AI Overviews appearing on 88% of queries, followed by Education at 83% and enterprise technology at 82%, with Insurance at approximately 63%, BrightEdge found.
• Restaurants show AI Overview presence at 78% and Insurance at approximately 63%, per BrightEdge’s 9-industry analysis.
• Entertainment top-10 citation overlap jumped from approximately 3.2% to about 18.5% (+15.3 pp), while Travel rose approximately 12 pp and eCommerce approximately 10.5 pp, based on BrightEdge analysis.
• Travel citation overlap grew from approximately 5.7% to about 17.7%, and eCommerce from 2.9% to 13.4%, per BrightEdge’s tracking.
• Industry-level AIO saturation data varies by category, and rankings shift as Google adjusts which query types trigger AI Overviews. BrightEdge’s 9-industry breakdown above captures the AIO presence and citation overlap differences, while Semrush category-level data covers a broader keyword set with different classification boundaries. The gap between healthcare’s dominant AIO presence and lower-trigger verticals like retail reflects how Google’s model prioritizes complex informational needs over straightforward product lookups.

AI Overviews Impact on Publisher Traffic

• Google Search traffic to publishers declined globally by a third in the year to November, according to Press Gazette’s trends report.
• In the United States, organic Google Search fell by 38% year on year, per that report.
• Google Discover dropped 21% year on year globally and 29% in the United States, according to the report.
• Publishers surveyed by Press Gazette expect traffic to decline by 43% on average over the next three years, with approximately one-fifth anticipating losses exceeding 75%.
• Penske Media Corporation filed an antitrust lawsuit against Google in September 2025, claiming Google abuses its search monopoly by forcing publishers to allow content use in AI Overviews.
• ChatGPT referrals account for just 0.02% of total publisher referral traffic, and Perplexity accounts for 0.002%, per the trends report.
• Ranking-style content in AI Overviews decreased 60% since the May 2024 launch, even as Google held over 90% share while click-throughs fell nearly 30% and rivals stayed approximately one-tenth of ChatGPT’s traffic, BrightEdge found.

The traffic decline data, combined with the Penske lawsuit, signals a growing tension between Google’s AI search expansion and the publishing ecosystem that supplies its source material. AI job loss statistics reflect a parallel pattern across the broader AI adoption cycle.

Source: Press Gazette

AI Overviews, Advertising, and Monetization Statistics

• SERPs with both ads and AI Overviews grew by over 394% in 2025, with ads rising from about 3% to roughly 40% and approximately 25% appearing at the bottom of AI Overview SERPs, per Semrush.
• Ads alongside AI Overviews rose from about 3% of SERPs in January 2025 to roughly 40% by November 2025, with approximately 25% appearing at the bottom and over 394% growth in combined ad-plus-AIO SERPs, per Semrush.
• Over 80% of AI Overview ads appear below the AI box, while about 18 to 20% appear above it, with ads rising from roughly 3% to approximately 40% of SERPs, per Semrush.
• Google Search and other revenue reached $63.07 billion in Q4 2025, a 17% year-over-year increase from $54.03 billion in Q4 2024, while GenAI revenue rose nearly 400%, per Alphabet’s earnings.
• Alphabet’s annual revenues exceeded $400 billion for the first time, with GenAI products up nearly 400% in Q4 2025, per Alphabet’s earnings.
• Revenue from products built on generative AI models grew nearly 400% year over year in Q4 2025, per Alphabet.
• Total Alphabet advertising revenue came in at $82.28 billion in Q4 2025, while GenAI revenue climbed nearly 400%, per Alphabet.

Source: Alphabet Earnings, Semrush

AI Mode Usage Statistics

• Google AI Mode reached 75 million users by December 2025, with GenAI revenue up nearly 400%, per Alphabet’s Q4 2025 earnings.
• Daily AI Mode queries per user doubled since launch in the United States, with Circle to Search available on over 580 million Android devices, according to Alphabet CEO Sundar Pichai.
• Queries in AI Mode run three times longer than traditional searches, with Circle to Search reaching over 580 million Android devices, per Alphabet.
• Nearly one in six AI Mode queries use non-text input (voice or images), with Circle to Search available on over 580 million Android devices, according to Alphabet.
• Alphabet’s Gemini App reached over 750 million monthly active users, per the company.
• Circle to Search became available on over 580 million Android devices, according to Alphabet.
• Alphabet sold over eight million paid seats of Gemini Enterprise, per the earnings report.

Source: Alphabet Q4 2025 Earnings

AI Overviews, Cited Brands, and Citation Advantage

• Brands cited in AI Overviews earn approximately 120% more organic clicks per impression versus uncited brands on the same query, per the Seer 2026 update.
• Brands cited in AI Overviews see 91% higher paid CTR than uncited competitors, according to Seer Interactive’s September 2025 study.
• Per 1 million impressions on informational queries, queries with no AI Overview generate approximately 33,500 clicks, cited brands receive approximately 20,743 clicks, and uncited brands receive approximately 9,445 clicks, based on Seer data.
• Uncited brands on AI Overview queries receive approximately 9,445 clicks per million impressions compared to approximately 33,500 when no AIO is present, a steep drop according to the Seer analysis.
• Queries without any AI Overview present still outperform cited brands by approximately 38% in organic clicks, per Seer’s analysis.

Our AI model comparison data documents a consistent pattern across AI systems: citation source selection shifts every few months. The same dynamic applies to AI Overviews, where cited brands benefit significantly while uncited brands face steeper traffic losses than traditional search ever imposed.

AI Overviews and Zero-Click Search Statistics

• Zero-click rates for keywords with AI Overviews actually decreased from about 33.75% to roughly 31.53% in Semrush’s before-and-after comparison from more than 10M tracked terms, with nearly 60% having under 100 searches.
• Google maintained over 90% search market share one year after launching AI Overviews, with rivals staying approximately one-tenth of ChatGPT’s traffic and organic click-throughs falling nearly 30%, according to BrightEdge data.
• Total search impressions increased approximately 49% since the AI Overviews launch in May 2024, even as click-throughs fell nearly 30% despite Google holding over 90% search share, per BrightEdge findings.
• ChatGPT grew 21% in the most recent month tracked, but Perplexity and Gemini remain approximately one-tenth of ChatGPT’s size, while organic clicks dropped nearly 30%, with Google at over 90% share, based on BrightEdge data.
• AI Overview: Zero-click rates have declined since January 2025 across more than ten million terms, where about 3% of SERPs had ads initially, roughly 40% by November, and nearly 60% were niche queries, per Semrush’s study.
• ChatGPT referrals account for just 0.02% of total publisher referral traffic, while Perplexity accounts for 0.002%, per Press Gazette.
• AI Overview SERP features frequently co-occur with other Google search elements. Related Searches and People Also Ask boxes appear alongside AI Overviews at high rates, while paid ad placement below the AI Overview box adds a commercial layer to the results page. This co-occurrence pattern suggests Google treats AI Overviews as a supplementary feature rather than a replacement for existing SERP modules, stacking them alongside traditional discovery pathways. The table below summarizes the co-occurrence patterns documented across the tracked keyword sets.

Frequently Asked Questions (FAQs)

Conclusion

AI Overviews reached approximately 48% of tracked queries by about February this year, a 58% increase over the prior 12 months, BrightEdge reports. The collected findings paint a nuanced picture with competing signals: organic CTR dropped as much as 61% on affected queries, yet early recovery signals show CTR rebounding to approximately 2.4%, while overall search impressions rose approximately 49%, even as clicks fell nearly 30% with Google at over 90% share.

SEO professionals, digital marketers, and publishers face a search environment where AI Overviews create both threats (traffic loss for uncited sites) and opportunities (citation advantage for optimized brands). The data suggests the initial shock period may be giving way to a new equilibrium where citation visibility matters as much as traditional ranking position. Separate LLM hallucination statistics remain a factor in AI search accuracy and trust.

These AI overview statistics show that Google’s AI-powered search is no longer experimental but rather a core product shaping how users discover content and how advertisers plan budget allocation. Google Search revenue grew 17% year over year to $63.07 billion, with GenAI revenue up nearly 400%, showing the business model is working for Google, even as publishers grapple with declining referral volumes and an uncertain outlook for organic discovery. The question for the rest of the web is whether Google search statistics will continue to show the same volume growth, or whether alternative AI search tools will begin fragmenting the market in meaningful ways.

Data in this report was cross-referenced against Alphabet SEC filings, Seer Interactive’s CTR studies, Semrush keyword tracking, BrightEdge Generative Parser data, Surfer SEO’s citation analysis, and Press Gazette publisher traffic reports. Each source employs distinct measurement windows and sampling frameworks, which can produce legitimately different readings for similar metrics.