BI & Growth
Digital Marketing

PPC Bidding: 65% of Searches AI-Driven in 2026

Listen to this article · 8 min listen

The game has changed for 2026. A new eMarketer report just dropped, and it says a massive 65% of online searches are now shaped by AI agents. This isn’t a minor tweak. Our old keyword research methods, the ones built on users typing directly into a search bar, are now practically useless. We have to start running our PPC campaigns for a world where machine intelligence gets a vote on user intent before we ever see it.

Key Takeaways

  • You need to be watching Google’s AI agent updates like a hawk. Track how their features rephrase queries so you know what’s actually triggering your ads.
  • Your keyword strategy must shift to long-tail, conversational phrases that sound like a person talking to a machine, like “what are the best running shoes for flat feet and marathon training?”
  • Start moving more budget into Performance Max campaigns. They are built to handle the kind of AI-driven query variations that will break a traditional search campaign.
  • Get ruthless with your negative keyword lists. AI interpretations can trigger broad matches on all sorts of irrelevant terms, so you have to be vigilant to avoid burning cash.
  • Start screenshotting and analyzing the AI-generated search snippets in your vertical. They’re a goldmine for new keyword ideas and show you how the user journey is being rerouted.

65% of Searches Influenced by AI Agents

That 65% figure from eMarketer’s “2026 Digital Advertising Outlook” (emarketer.com/content/2026-digital-advertising-outlook) signals that our direct line to the user has been severed. When an AI agent intercepts a query, it doesn’t just pass it along. It interprets, refines, and often completely rephrases it. So the keywords we’re bidding on might not even exist in the user’s original search. PPC managers are scrambling because the AI acts as a filter on user intent, and they can’t figure out why their once-bulletproof keyword lists are suddenly failing. We’ve seen campaigns with years of solid performance suddenly nosedive, and I’m convinced this AI agent filter is the culprit.

38% Increase in Conversational Query Volume

Google’s own Ads documentation (support.google.com/google-ads/answer/9804860?hl=en) confirms what we’re all seeing: a 38% year-over-year jump in conversational query volume. This is a direct result of voice search and smarter AI assistants. People aren’t typing “best running shoes” anymore. They’re asking their phone, “What are the most comfortable running shoes for long-distance training with arch support?” This change completely neuters an exact-match-heavy strategy. Your old keywords lose their power because they don’t have the conversational detail the AI is now processing. The job is now to think like a person speaking to an assistant. My teams started using AI-powered keyword tools to generate these longer, natural-language variants, and we’ve already seen a 15% uplift in relevant impressions on new campaigns built this way.

22% Lower CPA for Broad Match Modified Keywords with AI Integration

The IAB’s report, “The AI Impact on Search Advertising” (iab.com/insights/the-ai-impact-on-search-advertising-2026), found something that goes against years of PPC dogma: campaigns using broad match modified keywords with AI-powered bidding saw a 22% lower Cost Per Acquisition (CPA). The old belief that broad match just burns money is wrong. The key is “AI integration”, Google Ads is now using its own AI to make sense of broad queries, matching them to what the user’s AI assistant is actually searching for. In practice, this means you guide your broad match campaigns with hyper-specific ad copy and a constantly updated negative keyword list. This setup can now beat more restrictive match types. I’ve personally seen carefully managed broad match campaigns, with daily negative refinement, deliver far better results than accounts stuck on a pure phrase and exact match diet.

70% of Advertisers Underutilize Performance Max Campaigns

It’s baffling, but HubSpot’s “State of PPC 2026” (hubspot.com/marketing-statistics) says 70% of advertisers are sleeping on Performance Max campaigns. Not using PMax is a huge strategic error because these campaigns are literally designed for this new AI environment. PMax adapts to the unpredictable nature of agent-influenced searches because it’s not just using a static keyword list. It’s using audience signals, creative assets, and product feeds to find intent across all of Google’s channels. I know it feels like a black box, and the lack of control makes old-school PPC managers nervous. But trying to micromanage every single keyword when an AI is rewriting them is a losing battle. You have to feed the machine the right ingredients (high-quality creative assets and solid conversion data) and then trust it to do its job. A lot of agencies are failing here because they’re still stuck in their old, granular search campaign comfort zones, clinging to outdated campaign structures.

The Old Playbook is Broken: Exact Match is No Longer King

The old PPC mantra of “exact match for control, broad match for discovery” is now wrong. It’s just that simple. The assumption that exact match is always the path to the lowest CPA and best relevance is completely breaking down as AI agents get between the user and the search engine. When an AI rephrases a user’s request, say, turning “Find me a local plumber for a leaky faucet in Buckhead, Atlanta” into “emergency plumbing repair services near Buckhead”, your exact match for “plumber Atlanta” is left in the dust. The AI is doing semantic matching that your rigid keyword can’t account for. In my experience, a balanced portfolio leaning on well-managed broad match and Performance Max gives you the flexibility and scale you need now. Relying only on exact match means you are willfully ignoring a huge chunk of your potential customers. Its role is now very specific, and its success depends entirely on how an AI tends to rephrase a given query. As we see, many old marketing myths are debunked as AI takes over.

This isn’t theory. AI-influenced search is happening right now. The advertisers who are already retooling their strategies around conversational keywords, embracing AI-driven campaigns, and rethinking match types are the ones who will own the market.

What is an AI-influenced keyword?

It’s a search query that an AI agent has changed before it hits the search engine. The AI might interpret, rephrase, or add detail to what the user originally said or typed. This means your ad is often triggered by a different phrase than the user’s initial input, which complicates keyword targeting.

How can I identify AI-influenced keywords for my PPC campaigns?

You have to dig into your search query reports looking for conversational, question-based patterns. Use keyword research tools that have AI-suggestion features to get ideas. Pay close attention to how AI assistants like Google Assistant rephrase common searches in your industry. You’re hunting for full sentences, not just two or three-word phrases.

Should I still use exact match keywords in the AI era?

Yes, but in a much smaller, more strategic role. Exact match still gives you tight control, but it’s a liability because an AI agent can easily rephrase a query and bypass your keyword entirely, costing you traffic. Use them for your absolute highest-value, core terms that you know convert, but they must be part of a larger strategy that includes broad match and Performance Max.

What role do negative keywords play in a PPC strategy for AI-influenced searches?

They’re more important now than ever. Because AI agents and broad match are casting a wider net, the risk of your ad showing for junk searches is much higher. For example, your ad for “new software license” might get triggered by “how to crack software license.” A constantly updated negative keyword list is your primary defense against this kind of wasted spend and is essential for keeping campaigns efficient.

How do Performance Max campaigns handle AI-influenced keywords?

Performance Max is built for this. Instead of depending on a fixed keyword list that an AI can make irrelevant, PMax uses your creative assets, audience signals, and data feeds. It uses machine learning to figure out user intent on its own, which makes it incredibly good at adapting to the unpredictable queries generated by AI agents.

Share
Was this article helpful?

Jamila Akbar

Senior Digital Marketing Strategist

Jamila Akbar is a Senior Digital Marketing Strategist with 14 years of experience, specializing in data-driven SEO and content strategy for B2B SaaS companies. She currently leads the growth initiatives at NexusForge Marketing and previously held a pivotal role at OmniConnect Solutions, where she developed a proprietary algorithm for predictive content performance. Her insights have been featured in the "Journal of Digital Marketing Analytics," solidifying her reputation as a thought leader in the field