What percentage of online search is now generated by AI?

How This Shift Is Transforming Business, SEO, Reach, and Traffic

The search landscape is undergoing the most dramatic transformation since Google first launched. For the first time in history, a significant portion of online searches are no longer typed directly by humans. Instead, they are being generated, rewritten, or answered by AI systems before a user ever clicks a link or sees a traditional search engine results page (SERP).

This shift is not theoretical. It is measurable, accelerating, and already reshaping how businesses earn visibility, traffic, and revenue online.

In this article, we’ll break down:

• What percentage of searches are now generated or influenced by AI

• How AI search engines (ChatGPT, Gemini, Perplexity, etc.) are changing user behavior

• How Google’s AI Overviews are reducing clicks and reshaping SEO

• What this means for businesses, marketers, and content creators

• How to adapt your SEO strategy for an AI‑dominated future

How Much of Today’s Search Activity Is Generated by AI?

Multiple industry studies now confirm that AI is directly involved in a large and growing share of search activity.

1. 38% of all queries are now partially rewritten or fully generated by AI

According to EWR Digital’s 2025 AI Search Trends Report, 38% of all queries are now partially rewritten or fully generated by AI before the user even sees results.

This includes:

• AI rewriting user queries to improve relevance

• AI generating follow‑up questions

• AI producing full answers without requiring a click

• AI summarizing content directly on the results page

This is the clearest indicator yet that AI is no longer just a tool layered on top of search — it is becoming the search engine.

2. 61% of consumers now start with an AI engine instead of Google

The same report found that 61% of consumers now begin their search journey with an AI engine like ChatGPT, Gemini, or Perplexity, not a traditional search engine.

This is a massive behavioral shift. For two decades, Google was the default starting point for nearly every online question. That dominance is now eroding.

3. 93% of users interact with AI‑generated answers weekly

AI‑generated answers are no longer niche. 93% of users now interact with AI‑generated answers at least once per week, according to EWR Digital.

This includes:

• Google AI Overviews

• ChatGPT responses

• Perplexity answers

• Gemini search results

AI is becoming the new “front door” to the internet.

4. AI Overviews alone reach over 1.5 billion users per month

Google’s AI Overviews — the AI‑generated summaries that appear above traditional search results — reached 1.5 billion monthly users in Q1 2025, representing 26.6% of all internet users.

This means more than a quarter of the internet is already consuming AI‑generated search answers whether they realize it or not.

AI Search Is Growing Faster Than Traditional Search

Semrush’s 2025 study predicts that AI search visitors will surpass traditional search visitors by 2028, and possibly sooner if Google makes AI Mode the default.

This aligns with broader trends:

• ChatGPT’s weekly active users grew 8× from 2023 to 2025.

• Google is rapidly expanding AI Mode and AI Overviews.

• User reliance on traditional blue‑link SERPs is declining.

AI search is not just growing — it is accelerating.

How AI Search Is Affecting Businesses, SEO Rankings, and Website Traffic

The rise of AI‑generated search has profound implications for businesses. Some are positive, but many represent serious challenges for brands that rely on organic traffic.

Let’s break down the biggest impacts.

1. AI Search Is Reducing Click‑Through Rates Across the Web

AI Overviews reduce clicks to websites by 34.5%

Ahrefs reports that Google’s AI Overviews reduce clicks to websites by 34.5%.

This is because:

• AI answers summarize content directly

• Users get what they need without clicking

• Links are often deprioritized or hidden

This is the most significant decline in organic traffic since the rise of featured snippets.

Zero‑click searches now dominate

Break The Web reports that 58.5% of Google searches in the U.S. result in zero clicks.

This means more than half of all searches end without a user visiting any website.

AI Overviews are accelerating the zero‑click trend

AIOSEO confirms that 60% of searches now end without a click due to AI Overviews.

For businesses that rely on organic traffic, this is a seismic shift.

2. Traditional SEO Rankings No Longer Guarantee Visibility

AI search engines do not rely on traditional ranking signals the same way Google does.

80% of sources cited by AI search platforms don’t appear in Google’s top results

Ahrefs found that 80% of sources cited by AI search platforms do not appear in Google’s top results, and only 12% match Google’s top rankings.

This means:

• Ranking #1 on Google does not guarantee AI visibility

• AI engines use different criteria (freshness, authority, entity strength)

• Many high‑ranking sites are invisible in AI answers

Entity‑rich sites perform better in AI search

EWR Digital reports that entity‑rich sites see a 23% higher appearance rate in AI‑generated results.

This is a major shift from keyword‑based SEO.

3. AI Search Compresses the Marketing Funnel

Semrush notes that AI search compresses the marketing funnel by giving users everything they need upfront.

This means:

• Fewer top‑of‑funnel visits

• Fewer comparison‑stage visits

• Fewer opportunities to nurture leads

• More pressure on brand authority and direct traffic

AI is removing entire stages of the customer journey that businesses used to rely on.

4. AI Search Is Changing What Content Gets Visibility

AI engines prefer:

• Fresh content

• Concise, authoritative answers

• Entity‑rich pages

• Structured data (schema markup)

• Content updated within the last 30 days

Ahrefs found that 76.4% of ChatGPT’s most‑cited pages were updated in the last 30 days.

This is a radical departure from traditional SEO, where evergreen content could rank for years.

5. AI Search Is Creating Winners and Losers

Winners

Brands that:

• Have strong entity authority

• Publish fresh, concise content

• Use schema markup

• Are cited frequently across the web

• Optimize for AI engines (GEO and AEO)

Losers

Brands that:

• Rely on long‑form content alone

• Depend heavily on informational traffic

• Have weak brand authority

• Do not update content frequently

• Ignore AI optimization

The gap between winners and losers is widening quickly.

How AI Search Affects Reach and Brand Discoverability

AI search engines behave differently from Google in ways that directly affect brand reach.

AI engines cite brands 37% more often when schema markup is strong

EWR Digital reports that schema markup significantly increases AI visibility.

AI Overviews lean heavily on user‑generated content

Ahrefs found that AI Overviews cite:

• Reddit 3.4% more than expected

• Quora 2.2% more

• YouTube 2% more

This means brands with strong UGC ecosystems gain more visibility.

Only 18% of websites are optimized for generative engines

Most businesses are not prepared for this shift.

This creates a massive opportunity for early adopters.

How Businesses Should Adapt to AI‑Driven Search

AI search is not going away. It is becoming the dominant search experience. Here’s how businesses can adapt.

1. Shift from Keyword SEO to Entity SEO

Entity SEO focuses on:

• Brand authority

• Topic ownership

• Semantic relationships

• Structured data

This is what AI engines rely on to determine credibility.

2. Optimize for Generative Engine Optimization (GEO)

GEO includes:

• Providing concise, authoritative answers

• Using schema markup

• Updating content frequently

• Building brand mentions across the web

GEO‑optimized pages appear 2.2× more often in Perplexity answers.

3. Optimize for Answer Engine Optimization (AEO)

AEO focuses on:

• “How‑to” content

• Step‑by‑step instructions

• FAQ‑style answers

• Voice search optimization

AEO‑optimized content is 3× more likely to appear in multi‑step AI responses.

4. Update Content Frequently

Freshness is now a ranking factor for AI engines.

• Update key pages every 30–60 days

• Refresh statistics

• Add new insights

• Improve clarity and conciseness

5. Build Brand Authority Everywhere

AI engines reward brands that are:

• Cited frequently

• Discussed across platforms

• Linked from authoritative sites

• Mentioned in UGC communities

This is the new “off‑page SEO.”

Conclusion: AI Is Now a Major Driver of Search — and Businesses Must Adapt

The data is clear:

• 38% of all queries are now AI‑generated or AI‑rewritten

• 61% of consumers start with AI engines instead of Google

• 93% of users interact with AI answers weekly

• AI Overviews reduce clicks by 34.5%

• Zero‑click searches exceed 58%

• AI search will surpass traditional search by 2028

AI is not just influencing search — it is becoming search.

Businesses that adapt now will gain visibility, authority, and traffic in the new AI‑driven ecosystem. Those that cling to traditional SEO alone will see declining reach, fewer clicks, and shrinking organic traffic.

If you struggle with using AI to guide your traffic, feel free to reach out so I can help you discuss a plan that works for your business. http://www.legnamarketinggroup.com/contact

Below is a comprehensive, research‑backed list of the most‑used AI platforms and apps in 2025,

Most‑Used AI Platforms and Apps (2025)

1. ChatGPT (OpenAI)

• 5.72 billion monthly visits

• 800 million weekly active users

• 190.6 million daily users

• Handles over 1 billion queries per day

• Used by 92% of Fortune 100 companies  

2. Canva (AI‑Powered Design Tools)

• 887 million monthly visits

• 220 million monthly active users

• Major AI design tool with ~20% market share

3. Google Gemini (formerly Bard)

• 350 million monthly active users

• 267–284 million monthly visits

• Available in 230+ countries and 40+ languages  

4. Microsoft Copilot (Bing Chat)

• One of the top four global AI chatbots

• Integrated into Windows, Office, Edge, and Bing

5. Claude (Anthropic)

• One of the fastest‑growing enterprise AI assistants

• Popular for safety‑focused and long‑context reasoning

6. DeepSeek

• 268 million monthly visits

• 10 million users in first 20 days

• Popular in regions where ChatGPT is restricted

7. Midjourney

• Leading AI image generator

• Tens of millions of active users

• Dominant in creative and visual industries (Usage inferred from AI usage reports; not directly quantified in search results.)

8. DALL·E (OpenAI)

• Integrated into ChatGPT

• One of the most widely used AI image generators globally

9. Perplexity AI

• Rapidly growing AI search engine

• Known for citation‑rich answers

• Millions of monthly active users (Usage widely reported across industry sources.)

10. Replit AI / Ghostwriter

• Popular among developers

• Millions of coding‑related AI interactions monthly

11. Notion AI

• Integrated into Notion’s 30M+ user base

• Used for writing, summarization, and productivity

12. Adobe Firefly

• AI image and design generator

• Integrated into Adobe Creative Cloud (Photoshop, Illustrator, Express)

13. Jasper AI

• Leading AI marketing and copywriting platform

• Millions of business users

14. Synthesia

• AI video generation platform

• Used by thousands of enterprises

15. ElevenLabs

• Leading AI voice generation platform

• Millions of creators and businesses

16. Hugging Face

• Largest open‑source AI model hub

• Millions of developers and researchers

17. Meta AI (Llama‑powered)

• Integrated into Facebook, Instagram, WhatsApp

• Billions of potential users

18. Apple Intelligence (2025 rollout)

• Integrated into iPhone, iPad, and Mac

• Expected to reach hundreds of millions of users

19. Agentic AI Platforms (2025 Trend)

(From Elfsight’s AI Usage Report)

• Autonomous AI agents that perform tasks end‑to‑end

• Examples: Devin AI, AutoGPT, OpenAI Agents

20. Enterprise AI Platforms (from AI Usage Reports)

• Microsoft Azure AI

• Google Cloud Vertex AI

• Amazon Bedrock

• IBM WatsonX

• Salesforce Einstein