AI search is eating into paid media budgets. When ChatGPT answers a product question directly, the user never sees your Google Ad. When Perplexity recommends a competitor, your retargeting pixel never fires. The rise of AI search has profound implications for PPC, and most paid media teams aren’t prepared.
How AI Search Is Changing the Paid Media Landscape
The Click Erosion Problem
Google AI Overviews now appear on 40-60% of informational queries (up from 15% in early 2025). Each AI Overview that fully answers a query represents a lost click opportunity for paid ads below it. For advertisers, this means: rising CPCs as available click inventory shrinks, lower CTRs on ads pushed below AI Overviews, some query categories becoming effectively “zero-click” with no ad opportunity.
The Channel Shift
Users who would have searched Google (and seen your ads) are increasingly going directly to ChatGPT or Perplexity. These platforms currently show limited or no traditional ads. Your carefully optimized Google Ads campaigns don’t reach these users at all.
What This Means for PPC Strategy
1. Budget Reallocation
Smart brands are shifting 10-20% of search ad budget toward GEO. The logic: if a user asks ChatGPT instead of Google, your Google Ad budget on that query is wasted anyway. Better to invest in being the brand ChatGPT recommends.
2. AI-Powered Ad Platforms
Perplexity has launched sponsored answers. Microsoft Copilot includes ads. Google AI Overviews sometimes incorporate sponsored results. These are emerging ad formats that PPC teams should be testing. However, organic AI citations consistently outperform sponsored placements in trust and click-through.
3. The Branded Search Opportunity
Interestingly, AI search is making branded search MORE valuable, not less. When someone asks ChatGPT about your brand and then Googles you, they’re high-intent. Ensure your branded PPC campaigns capture this AI-referral traffic.
4. Full-Funnel Impact
AI search primarily impacts top-of-funnel and mid-funnel queries — the informational and consideration phases. Bottom-funnel transactional queries (“buy [product] online”) are less affected so far. Adjust budget allocation accordingly: protect transactional campaigns, invest GEO budget in the funnel stages AI is disrupting.
The GEO + PPC Integrated Strategy
| Funnel Stage | AI Impact | Strategy |
|---|---|---|
| Awareness | High (AI answers directly) | GEO investment (be the cited brand) |
| Consideration | High (AI compares options) | GEO (comparison content) + retargeting |
| Decision | Medium (AI recommends) | GEO (recommendation triggers) + branded PPC |
| Purchase | Low (still Google-driven) | Traditional PPC (protect this budget) |
Action Items for PPC Teams
Audit AI visibility today. Ask ChatGPT and Perplexity the queries you’re bidding on in Google Ads. Is your brand mentioned? If not, you’re paying for clicks on queries where AI is already providing the answer — and recommending someone else.
Test emerging AI ad formats. Perplexity sponsored answers, Microsoft Copilot ads, and Google AI Overview placements are all in early stages. Early adopters get lower costs and competitive advantage.
Integrate GEO and PPC reporting. Track the overlap: which queries trigger AI Overviews? What percentage of your PPC query volume has AI competition? This data should inform budget allocation quarterly.
Ready to Get Your Brand Recommended by AI?
Be The Answer is a GEO-first agency that helps brands appear in ChatGPT, Perplexity, Google AI Overviews, and every AI search engine that matters. We don’t just optimize for rankings — we optimize for recommendations.
Frequently Asked Questions
Is AI search reducing PPC effectiveness?
Yes. AI Overviews push ads further down the page, and users increasingly go directly to AI platforms that don’t show traditional ads, reducing click inventory for PPC campaigns.
Should I reduce my PPC budget for GEO?
Most brands should reallocate 10-20% of search ad budget toward GEO, particularly for informational and consideration-stage queries. Protect transactional PPC budgets where AI impact is lower.
Do AI search platforms have ads?
Perplexity offers sponsored answers, Microsoft Copilot includes some ads, and Google AI Overviews occasionally feature sponsored results. These formats are new and less developed than traditional search ads.