Affiliate marketing is having a main character moment.
According to eMarketer’s Affiliate Marketing 2025 report, advertisers will spend 12.4 billion dollars on affiliate programs this year, up nearly 10 percent year over year, driving 13 percent of all U.S. ecommerce sales, roughly one in every seven dollars spent online. And yet the story is just beginning. The report calls this moment a “profound, AI-powered disruption,” as tools like ChatGPT reshape how consumers discover and buy.
Influencers are driving much of that growth. On one major network they now account for nearly 20 percent of affiliate budgets, the fastest-rising slice of the channel. But with growth comes scrutiny. Advertisers point to inflated commissions, fraud, and murky attribution. Consumers have their own doubts. PartnerCentric’s new study, The Anxiety of Influencers: Top Trends in Influencer Marketing 2025, found that 76 percent of Americans follow influencers, yet only 17 percent name them as their most trusted source of product recommendations—ranking behind crowdsourcing at 63 percent and even AI at 20 percent.
Everyone follows influencers, but far fewer believe them. That credibility gap is where the next wave of performance marketing will be won.
From Reach to Resonance
Our research also found that 60 percent of consumers remember influencer recommendations more than traditional ads, and half have made a purchase this year, spending an average of $372. The issue is not influence; it is trust.
Large audiences no longer guarantee results. What drives performance now are partnerships that feel relevant, transparent, and credible. The most effective programs are built on shared values and measurable outcomes—the kind that create both recall and results.
The AI Factor
eMarketer notes that generative AI is “rewriting affiliate marketing’s most important rules.” ChatGPT and other tools are becoming shopping assistants, ingesting affiliate content and experimenting with affiliate-style revenue models. Between late 2024 and mid-2025, shopping-related queries on ChatGPT grew faster than any other topic.
Meanwhile, AI matchmaking platforms are speeding up how brands and creators connect. Yet PartnerCentric’s survey shows more than half of consumers feel uneasy about AI-generated influencers. People want technology to make shopping easier, not impersonate trust. The opportunity lies in balance: using AI to make smarter, faster, and fairer decisions behind the scenes, while keeping genuine human connection at the forefront of how influence works.
Holding Influencers to Affiliate Standards
Affiliate marketing has always been grounded in accountability and results. Influencer marketing is catching up, and it deserves the same rigor. As eMarketer notes, attribution and incrementality are becoming critical differentiators as AI reshapes discovery and consumer journeys. Brands need smarter technology to separate true incremental sales from surface-level engagement and to understand where real growth originates.
The principle should be simple: every dollar spent should demonstrate measurable value, not vanity metrics. That is how advertisers can seize the influencer opportunity without losing transparency, trust, or ROI.
The Bottom Line
Affiliate marketing is entering its AI era, powered by technology, reshaped by content, and accelerated by creators. Success will depend on one thing above all: resonance.
Consumers want authenticity. Brands need accountability. The marketers who deliver both will define performance in the AI age.
Because in the end, influence is not about who talks the loudest. It is about who is believed when they speak.