In a year marked by platform volatility, AI acceleration, tariff shocks, and shifting consumer behavior, marketers searched for clarity across EMARKETER’s most-read topics. The top 10 themes reflect where advertiser attention truly moved in 2025. These trends captured the forces reshaping performance, discovery, and measurement: AI-driven optimization, creator-centric social ecosystems, commerce-led advertising, and CTV’s rise as the new premium video default. Together, they tell the story of a market recalibrating around efficiency, accountability, and cultural relevance as marketers prepared their 2026 strategies.

Major shifts from aging cohorts to rising media time and uneven AI adoption set the stage for another unpredictable year. Here are five charts to help your business understand these changes and kick-start the new year.

New data shows traditional SEO success no longer guarantees visibility inside generative AI answers. Ahrefs found that fewer than 9% of ChatGPT and Gemini citations come from URLs ranked in Google’s top 10 results—meaning more than 90% of high-ranking organic pages never appear in AI responses. Instead, LLMs lean heavily on community-driven sources like Reddit, YouTube, Wikipedia, Yelp, and TripAdvisor, dramatically reshaping early-stage discovery. With LLM usage exceeding one billion monthly users, brands that do not participate in open forums risk disappearing from AI-mediated journeys. Marketers must treat GEO as a distinct discipline, not an extension of SEO.

Retailers faced a challenging year as economic factors, new technologies, and changing consumer behaviors reshaped the landscape. Here are our top five stories from this past year and what they meant to a tumultuous industry.

Artificial intelligence is working its way into every facet of the US economy, and the payments industry is no exception. While the changes to consumers’ payment behavior will be gradual, providers need to act now, according to our 2026 AI in the Payments Customer Life Cycle report. Providers need to overcome critical issues like data fragmentation, but a well executed AI strategy can help providers maintain control over product discovery and streamline checkout.

Walmart’s OnePay adopted Google’s Agent Payments Protocol (AP2) to drive agentic commerce as a credentialled provider, per a press release. With Chrome remaining consumer’s most popular browser, Gemini is narrowing the gap with ChatGPT as the most used chatbot: We forecast that by 2029, Gemini will hold 53% of genAI market share. That in turn could give Google’s AP2 a large share of agent-driven consumer spend in the long term, as consumers develop loyalty and use patterns around AI platforms.

On today’s EMARKETER Miniseries—AI-Driven Media Management—we explore how to break down the media manager role into workflows that can be automated or augmented by agentic AI, what agencies misunderstand about AI, and which agency tasks are ripest to hand off to AI right now. EMARKETER Senior Director of Content Jeremy Goldman speaks with Adam Epstein, co-founder and CEO of Gigi. Listen everywhere you find podcasts, and watch on YouTube and Spotify.

Over one-third of Gen Z (39%) and millennials (34%) who have used genAI tools to check symptoms report that they would put off seeing a doctor if the AI told them their issue was low-risk, according to an October 2025 poll from The Mesothelioma Center at Asbestos.com conducted by SurveyMonkey. Overrelying on AI for medical guidance carries real risk, especially as models are still maturing and sometimes produce faulty information. AI companies should add explicit in-chat disclaimers against being used as a replacement for medical care and strengthen guardrails to block unvetted or potentially harmful health advice.

As consumers grow more comfortable with using AI, retail industry leaders see 2026 as a pivotal year in shaping how the emerging technology disrupts the way people shop.

AI-assisted shopping and advertising will surge as the Gulf states support innovation, but a creator content boom will cause tensions around censorship.

"Consumers are conditioned to spend even when they're feeling pressured. Nearly a third of consumers were prepared and ready to take on debt this season to make their holiday purchases,” said our analyst Zak Stambor on a recent episode of “Behind the Numbers.”

Consumers are integrating AI into everyday health searches as tools grow more conversational, even though output reliability remains uneven. The balance of speed, accuracy, and trust will shape how people use AI for information and care.

Amazon's recent business moves, examining corporate layoffs, AI-powered shopping features, and new smart glasses technology for delivery workers paint an interesting view of its immediate future and what it could mean for consumers.

Google is quietly exploring how Gemini could support advertising in 2026, per Adweek, even as the company publicly denies any such plans. Agencies say Google has framed potential Gemini ads as high-intent, conversational opportunities for ecommerce brands—signals emerging alongside rapid user growth. Gemini’s global MAUs have climbed roughly 30% since August, and its US footprint is projected to reach 85.7 million users by 2029. If prompt-level signals become targetable, conversational AI could function as a new, more precise form of intent advertising.

The EU’s regulatory environment will hinder investment in AI-generated ads and agentic commerce in 2026. But TikTok Shop’s expansion will be a catalyst for live commerce.

Canada’s digital economy is entering a faster, more competitive phase in 2026 as ad spending accelerates, short video surges, ecommerce climbs, and AI-driven search reshapes how audiences discover content.

In 2026, dominant platforms like Google and Amazon will flex their muscle against ChatGPT; smaller players like Perplexity and Claude will need to make either product moves or M&A moves; and AI-focused marketers will spend more on YouTube than ads on AI platforms.

Shifts in what consumers watch, how they search, and where they shop are reshaping Latin America’s digital economy—and how brands will reach audiences in 2026. Explore the five trends to watch in the year ahead.

An OpenAI leak indicates that ads are coming to ChatGPT in the near future, according to computer engineer Tibor Blaho. Advertisers should anticipate a future where ads become a core part of the ChatGPT experience and act quickly to test and learn before competitors, but should remain agile in their strategies and remain informed about developments in consumer behavior.

OpenAI has refuted legal claims that ChatGPT is at fault for a teenager’s recent suicide. Scrutiny of AI tools being used for emotional and therapeutic support will only intensify. Both general-purpose platforms and specialized healthcare AI tools should proactively take action to impose age restrictions, automatically end sessions at the first sign of emotional distress, and clearly direct users to mental health resources when appropriate.