Observed Signal · Nov 2, 2026 · Policy Update · Source: Digiday · Impact: 4/5 · Sentiment: Negative
Google Search Ad Budgets Face Increased Scrutiny from Buyers
Media buyers are increasingly questioning the effectiveness of Google search ad spend as AI Overviews reduce click-through rates and alter click value. According to interviews with 18 buyers, some clients are reallocating 10-30% of their Google search budgets to other channels like Meta and TikTok, especially for upper-funnel objectives. Google's search ad revenue growth slowed to 12% in Q3, partly due to AI Mode, and advertisers are closely evaluating post-click metrics and incrementality. While some see paid search as more important due to declining organic visibility, others are diversifying within Google's ecosystem (AI Max, Performance Max) and exploring alternatives like ChatGPT. Google's AI Mode ads are expanding to new markets, and CPCs continue to rise, prompting a reevaluation of search's role in media plans.
This article highlights a significant shift in advertiser sentiment toward Google Search ads, with buyers reallocating budgets due to AI Overviews and changing search behavior. It reflects a broader industry trend that could impact Google's ad revenue and the effectiveness of search as a channel.
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Key Takeaways & Evidence Grounding
- Alphabet's search ad revenue grew 12% in Q3, the slowest pace this year, partly due to AI Mode.
- Media buyers report clients reallocating 10-30% of Google search budgets to other channels.
- Branded keyword CPCs rose 5% in Q3, with non-branded terms roughly in line.
- US digital ad spend on search reached $114.2 billion last year, representing 38.8% of total.
- Google AI Mode ads are expanding to Brazil, Mexico, and the UK.
Connected Companies & Entities
10 Entities mapped“Google search ads are still very powerful, but in the next two-to-three years, we will see a lot of searches happen off of Google because of...”
“Alphabet's search ad revenue grew 12% in the third quarter, the slowest pace this year.”
“She said some of her clients were shifting a portion of their Google search budgets into channels including Meta and Local Services Ads.”
“She said some of her clients were shifting a portion of their Google search budgets into channels including Meta and Local Services Ads.”
“More of that money is landing on Meta and TikTok, where advertisers are trying to build awareness and consideration earlier in the funnel.”
“Victor Batista, global search lead at Jellyfish, put a finer point on it.”
“said Wpromote's head of paid search Valerie Dorer.”
“according to Michelle Merklin, vp of search at Tinuiti.”
“said Mark Byrne, director of paid media at Brave Bison.”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Google AI Max Raises Search Budgets, CPCs After One Year
One year after Google introduced AI Max for Search, advertisers and agencies report higher search spending and rising cost-per-clicks as the product shifts search toward automated, intent-driven auctions. AI Max generates target queries from landing pages, creatives and keywords, and Google says it yields roughly a 7% average conversion lift. Agencies told Digiday some clients increased search budgets 7–15% year‑on‑year tied to AI Max adoption, while reported CPC inflation ranged from around 10% to as high as 25% for some advertisers. Industry measurement firm Adthena estimated a ~35% year‑on‑year increase in advertisers participating in search auctions. Marketers are also using AI Max to reach users in Google’s AI Mode and Overviews as a response to falling organic web traffic and zero‑click behaviors.
ChatGPT Ads Get Cheaper; Google Adds AI Search Analytics
OpenAI partners are offering incentives to drive adoption of ChatGPT ad placements: Criteo cut its minimum spend for ChatGPT ads from $50,000 to $10,000 and will match client spend on the channel. Advertisers report early positive results but still describe ChatGPT ad buys as a 'black box' with limited control over volume and saturation. Separately, Google added generative-AI performance reports to Search Console that break out AI Mode and AI Overviews (AIOs), and allow reporting by impressions, pages (cited URLs), countries, devices and dates across Search and Discover — enabling publishers and advertisers to isolate AI-driven search performance for the first time.
Ad Tech Briefing: Google's AI-Reckoning
Google's Q3 earnings revealed that its AI-powered search features, particularly AI Mode, are impacting search advertising growth. The report highlights diminishing returns in the ad tech sector, as Google's AI success creates challenges for sustaining revenue. The briefing discusses the broader implications for digital media, noting that even major platforms face headwinds due to AI-driven changes in user behavior. It suggests that advertisers and publishers must adapt to a landscape where AI summaries reduce click-through rates and traditional search advertising models are under pressure. The article also touches on the need for ad tech companies to innovate or face declining performance.
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