A new study just delivered a wake-up call to every CMO who built a marketing budget around influencer partnerships and social feed dominance. AI shopping trust has officially overtaken social media as the most credible source shoppers turn to before buying, according to a global consumer study released by RTB House in August 2026. The research found that AI has surpassed other information sources for trustworthiness, such as influencers, newspapers, major media outlets, TikTok and Instagram . For an industry that spent a decade chasing algorithm changes and creator deals, this is not a minor shift. It is a full reordering of where consumer trust lives.
Matt Britton, founder of Suzy and one of the most sought-after AI keynote speakers in the country, has been telling audiences for two years that the purchase funnel of the last decade is collapsing. The RTB House data confirms it in hard numbers. While 59% of consumers trust their friends and family's opinions when making purchasing decisions, 44% of them trust AI tools , putting AI ahead of the social platforms brands have leaned on since the rise of Instagram marketing.
The stakes here are not theoretical. Britton has long argued that brands who win attention without winning trust end up with expensive impressions and empty carts. Now the data proves the inverse is also true: platforms nobody optimized for five years ago are quietly becoming the new front door to commerce. This piece unpacks what the shift means, why the "AI consideration engine" now matters more than the social algorithm, and what business leaders need to do before their competitors get there first.
What Is AI Shopping Trust and Why Is It Rising Now?
AI shopping trust refers to the degree to which consumers rely on AI tools like ChatGPT and Google AI Overviews as credible advisors during the purchase journey, rather than social media, influencers, or traditional media. The RTB House study surveyed 1,840 people in the United States, the United Kingdom, France and Japan during June and July 2026 and found the trust hierarchy has fundamentally flipped. Leading AI tools, such as agentic AI, now beat social media platforms such as TikTok, Instagram and Facebook for trustworthiness among U.S. and international shoppers .
The reasons behind this shift are structural, not fleeting. Consumers have grown fatigued with sponsored content and algorithmic feeds engineered for engagement rather than honesty. AI tools, by contrast, present themselves as neutral synthesizers of information rather than platforms monetizing attention. Leading AI tools now beat TikTok, Instagram and Facebook for trustworthiness among US and international shoppers , and they also outperform newspapers and major media outlets .
Not every AI tool earns equal trust, however. In the U.S., Google AI Overviews and ChatGPT are the top two AI shopping tools, both at 43%, followed by Claude (23%) and Grok (21%) . This gap matters enormously for brands deciding where to invest optimization resources. Matt Britton frequently reminds audiences on The Speed of Culture podcast that winning inside the dominant AI interface is quickly becoming as important as winning a Google search ranking once was.
How Agentic AI Commerce Is Changing the Purchase Funnel
Agentic AI commerce describes the emerging category of AI agents that don't just recommend products but can execute purchases on a consumer's behalf. This is the layer beyond discovery, and it is scaling faster than most CMOs anticipated. In a recent second-quarter earnings call with analysts, CEO Andy Jassy said that more than 350 million customers had used agentic AI shopping assistant Alexa for Shopping in the past year, with interactions skyrocketing fivefold year over year .
The financial delegation numbers are equally telling. 42% of US Millennials say they are comfortable giving an AI agent a budget of up to $250 to make a purchase on their behalf when a seven-day return window is guaranteed, compared to 27% of non-US Millennials . Even more striking, even without any return protection, 34% of US Millennials and 20% of non-US Millennials remain comfortable delegating the transaction . Trust is not just theoretical anymore. It is translating into real spending authority.
Still, consumers are not handing over the keys entirely. Human oversight remains paramount, with approval before checkout the single most requested safeguard globally . Generational differences are stark here too. Just 22% of Baby Boomers and 29% of Generation X would trust AI to make that $250 purchase safely, a figure that increases to 42% for Millennials and 35% for Gen Z . The market opportunity backs up the enthusiasm: by 2030, the U.S. agentic commerce market is projected to reach $1 trillion, according to a report from McKinsey & Company and ICSC .
Matt Britton, whose book Generation AI explores how AI-native consumers are reshaping brand expectations, argues this delegation trend is the clearest signal yet that CMOs need an agentic commerce strategy, not just a chatbot presence. Brands that fail to optimize for AI agents risk becoming invisible at the exact moment a transaction is being decided.
AI Brand Discovery Is Expanding, Not Shrinking, the Consideration Window
One of the more counterintuitive findings from the RTB House research is that AI is not speeding up purchase decisions. It is slowing them down by surfacing more options than consumers previously considered. 42% of US consumers and 33% of non-US consumers say AI tools increase the time it takes them to reach a final purchase decision by surfacing more brands, products and alternatives to consider .
This effect is strongest among younger consumers who are already primed to research extensively before buying. The effect is strongest among US Gen Z (48%), but holds across every generation measured . This confirms what Matt Britton has said repeatedly on the Gen Z keynote circuit: younger consumers treat purchase research as a form of due diligence, not a chore, and AI now amplifies that instinct at scale.
The upside for brands is significant if approached correctly. 59% of US consumers and 52% of non-US consumers say AI is good at surfacing brands they didn't previously know about . And this discovery is converting into real sales. 46% of US Millennials have already purchased from a brand they discovered through AI this year . This is the new brand discovery reality: a longer research window that rewards brands with strong AI visibility and structured product data, and punishes brands that remain invisible to AI crawlers and answer engines.
As Jaysen Gillespie, VP of Product Marketing and Analytics at RTB House, put it, "For more than a decade, e-commerce growth was driven by buying attention on social feeds and optimizing for instant checkouts. This research proves that era is coming to an end" . Matt Britton echoes this on stage at Fortune 500 events booked through his speaker platform, describing this expanded research window as a rare gift for brands willing to show up with substance rather than just spend.
Why Consumer Trust in AI vs Social Media Signals the End of the Influencer-First Playbook
For a decade, brands poured budget into influencer partnerships and social feed optimization as the primary path to purchase. That playbook is now under direct pressure. "For more than a decade, e-commerce growth was driven by buying attention on social feeds and optimizing for instant checkouts," Gillespie said. "This research proves that era is coming to an end" .
This does not mean influencer marketing disappears overnight, but it does mean influencer content increasingly functions as input data for AI systems rather than a direct-to-consumer trust signal. Brands need to think about how their creator content, reviews, and press coverage get interpreted and surfaced by AI answer engines, not just how they perform in a feed. This is precisely the strategic pivot Matt Britton has been advising Fortune 500 marketing teams to make.
Interestingly, trust in AI is not absolute or uncritical. Adjacent research shows consumers still verify what AI tells them. Reddit's own research found that half of US shoppers still fact-check AI product recommendations before purchasing, and a separate Yelp study found a much lower share of users fully trusting AI search results outright. This nuance matters: AI has become the most trusted single source, but consumers still triangulate across sources before committing.
For industries with high-consideration purchases, the implications compound quickly. Britton's work with clients through pages like AI speaker engagements in finance and real estate shows that categories built on trust and large transactions are exactly where AI's rise as a shopping advisor will be felt first and hardest.
The Future of Retail Marketing: Winning the AI Consideration Engine
The future of retail marketing is no longer about winning the algorithm. It is about winning the AI consideration engine, the layer of AI tools that now sits between brand awareness and final purchase. Brands must ensure their product data, reviews, and value propositions are structured in ways that AI systems can accurately retrieve and represent.
This requires a fundamentally different marketing discipline than social feed optimization. Where social success depended on creative virality and paid amplification, AI consideration engine success depends on structured data, accurate third-party validation, and consistent brand information across the web. Matt Britton frequently tells CMOs that the brands winning in this new environment are treating AI visibility with the same rigor once reserved for SEO.
Consider the practical checklist emerging from this shift:
- Audit how your brand currently appears in ChatGPT and Google AI Overviews responses to common category queries.
- Structure product pages and reviews with clean, machine-readable data that AI systems can accurately parse.
- Diversify trust signals beyond influencer content to include AI-citable reviews, press, and comparison data.
- Prepare for agentic checkout by ensuring return policies and guarantees are clearly documented and machine-readable.
- Monitor the widening gap between Google AI Overviews, ChatGPT, Claude, and Grok trust levels within your specific category.
Matt Britton's keynote presentations increasingly focus on this exact transition, giving executive audiences a practical framework for winning inside AI-mediated discovery rather than reacting to it after competitors have already gained ground.
Key Takeaways for Business Leaders
- Audit your brand's current visibility inside AI tools like ChatGPT and Google AI Overviews before competitors claim the top recommendations.
- Reallocate a portion of social-first marketing budgets toward structured data and AI-readable content strategies.
- Build agentic commerce readiness now, including clear return policies, since delegated AI purchasing is already mainstream among Millennials.
- Expect longer consideration windows and design remarketing and retention strategies that account for extended research phases.
- Invest in third-party validation and reviews, since AI systems increasingly synthesize trust signals from across the web rather than owned brand channels.
Frequently Asked Questions
What does it mean that AI has overtaken social media for shopping trust?
It means consumers now rate AI tools like ChatGPT and Google AI Overviews as more credible sources for purchase decisions than platforms like TikTok, Instagram, and Facebook. Leading AI tools now beat social media platforms such as TikTok, Instagram and Facebook for trustworthiness among U.S. and international shoppers . This signals a structural shift away from feed-driven discovery toward AI-mediated research.
Does AI shorten or lengthen the time it takes consumers to buy?
AI actually lengthens purchase decisions for a large share of shoppers rather than speeding them up. 42% of U.S. respondents and 33% of non-U.S. respondents say AI tools increase the time it takes them to reach a final purchase decision by surfacing more brands, products and alternatives to consider . Brands should treat this as an expanded window for engagement rather than a barrier.
Are consumers actually comfortable letting AI make purchases for them?
Comfort levels are rising quickly but remain conditional on safeguards. More than four-in-10 U.S. millennial respondents say they are comfortable giving an AI agent a budget of up to $250 to make a purchase on their behalf when a seven-day return window is guaranteed, though approval before checkout remains the single most requested safeguard globally . Trust exists, but human oversight is still expected.
Which AI tools do shoppers trust most for purchase decisions?
Google AI Overviews and ChatGPT lead the pack in the current data. In the U.S., Google AI Overviews and ChatGPT are the top two AI shopping tools, both at 43%, followed by Claude (23%) and Grok (21%) . Brands should prioritize visibility within these two platforms first when building AI discovery strategy.
Final Thought
The data is unambiguous: AI shopping trust has surpassed social media, and the brands still optimizing solely for feed algorithms are already behind. Matt Britton has built his reputation helping Fortune 500 marketing teams see around this exact kind of corner, and this shift is precisely the type of inflection point his keynotes are built to address. Companies that move now to win the AI consideration engine will define retail leadership for the next decade.
Business leaders looking to translate this research into a concrete strategy can explore Matt Britton's AI keynote speaker programs or book him directly through Speaker HQ to bring this data-driven perspective to their next leadership offsite or industry conference.



