The Advertiser’s Guide to the Prompt Revolution

▼ Summary
– Google AI Mode is shifting search from keywords to conversational prompts, reshaping user behavior and advertising strategies.
– AI-driven platforms like ChatGPT and Perplexity are fragmenting search, creating new intent originators beyond traditional search bars.
– Advertisers must adapt by using AI-first tools like Performance Max and AI Max, which rely on feeds and creative assets rather than keywords.
– The rise of “zero-click” journeys means users may complete tasks within AI conversations, reducing direct site visits and requiring new engagement metrics.
– Success in AI-driven advertising depends on providing rich data and creative inputs to influence AI recommendations, not just bidding on queries.
The advertising landscape is undergoing a seismic shift as artificial intelligence redefines how users search and engage with brands online. With conversational prompts and contextual understanding replacing traditional keyword-based queries, advertisers must adapt their strategies or risk being left behind. This transformation isn’t just theoretical, it’s already reshaping performance metrics, platform dynamics, and consumer behavior in profound ways.
Search behavior has evolved dramatically since the early days of keyword-targeted advertising. Users no longer rely on brief, carefully constructed queries. Instead, they’re engaging with large language models through detailed prompts, images, sketches, and even video content. Google’s internal data reveals that early testers of AI Mode are submitting queries two to three times longer than traditional searches. This shift toward natural language and multi-modal interaction means people aren’t just looking for information, they’re seeking guided recommendations and decision-making support.
This fundamental change in user behavior presents both challenges and opportunities for advertising platforms, particularly Google. While some feared AI would diminish Google’s dominance, the reality is more nuanced. Traffic hasn’t disappeared, it has migrated to new formats and platforms. Emerging players like ChatGPT and Perplexity are gaining substantial traction, with the latter growing from 10 to 22 million monthly users in just one year. This fragmentation means advertisers must now design campaigns that perform across multiple intent-origination points.
Recent financial reports underscore the massive investments being made in AI infrastructure. Microsoft plans to spend $30 billion on capital expenditures, while Alphabet has budgeted $85 billion for the coming year. These staggering figures highlight the industry’s commitment to an AI-driven future. Google’s own metrics show the scale of this transition: AI Overviews reach 2 billion users monthly, while AI Mode serves 100 million users. More importantly, AI-powered advertising is delivering impressive results, Performance Max campaigns drove over 10% more conversions, while AI Max for Search showed a 27% lift in conversions compared to traditional keyword matching.
For advertisers, the implications are clear. Relying solely on keyword-based strategies is becoming increasingly ineffective. The new advertising environment demands a shift from responding to intent to predicting and positioning for it. Performance Max campaigns, which operate without keywords and instead leverage feeds, creative assets, and audience data, are demonstrating superior performance. Similarly, AI Max represents the most flexible approach to keyword advertising yet, blending dynamic search ads, automatically created assets, and broad matching to capture even the most complex multi-part prompts.
The real challenge, and opportunity, lies in what industry experts call “invisible decisions.” As AI assistants become more capable of delivering complete solutions within conversations, brands risk missing out on visits entirely. However, data shows that AI-powered referrals to retail sites grew an astonishing 1,200% between mid-2024 and early 2025, with users from these sources visiting more pages, bouncing less frequently, and spending significantly more time browsing. Perhaps most tellingly, 53% of users now plan to rely on AI tools for shopping decisions.
Successful advertisers are responding by focusing on three key areas: signals over keywords, creative as targeting, and measurement beyond clicks. Leveraging CRM data, optimizing product feeds with rich attributes, and ensuring feed hygiene provides AI systems with the raw materials needed to make relevant recommendations. Building modular ad assets that can be dynamically assembled allows for personalization at scale, while new measurement approaches focused on task completion rather than click-through rates provide more meaningful performance insights.
The transition from keyword-based to AI-driven advertising isn’t the end of search marketing, it’s an evolution. The brands that will thrive in this new environment are those that understand the future isn’t about bidding on queries but about supplying AI with the best possible information to win recommendations at the moment of decision. This mindset shift, from controlling what users see to influencing what AI recommends, represents the ultimate competitive advantage in the emerging AI-first era.
(Source: Search Engine Journal)