OpenAI confirmed on March 26 that its ChatGPT advertising pilot surpassed $100 million in annualized revenue less than two months after launching in the United States. The company is now working with more than 600 advertisers, has hired former Meta VP David Dugan to lead global advertising solutions, and plans to launch self-serve advertiser tools in April. According to ppc.land, roughly 85% of free and Go-tier users are eligible to see ads, though fewer than 20% encounter them on any given day.
The $100 million figure represents annualized run rate, not cumulative revenue. Advertisers including Target, Ford, Adobe, and Best Buy are participating, with Criteo serving as the first formal ad tech partner, as ppc.land reported. Pricing sits at approximately $60 CPM, according to Adweek, approximately three times typical Meta advertising rates and comparable to premium streaming and NFL broadcast inventory. The scale is there. What's missing is a mature layer of performance data that would let a CFO evaluate the spend with the same confidence applied to search or social.
Click-through tells an incomplete story. Adweek data cited by eMarketer pegged chatbot ad CTR at roughly 0.91%, far below typical Google Search benchmarks. That comparison is structurally misleading. A ChatGPT user asking about moisturizers for dry skin is in a different mode of engagement than someone typing a product name into Google. The intent is exploratory, not transactional, and the ad appears at the bottom of a conversational response rather than at the top of a results page. Criteo's early data, as reported by ppc.land, suggests LLM-referred users convert at approximately 1.5x the rate of other referral channels, which points to higher downstream value per interaction, but that signal is still preliminary and based on a limited sample.
Discovery is being restructured. The advertising milestone matters beyond OpenAI's revenue line because it represents a broader shift in how consumers encounter brands. Shopify launched "Agentic Storefronts" the same week, enabling merchants to sell directly inside ChatGPT, Google AI Mode, Microsoft Copilot, and Gemini. Google activated in-conversation checkout within AI Mode for Etsy and Wayfair, with Shopify, Target, and Walmart coming next. The common thread: brand discovery is migrating from search results pages to AI-mediated conversations, and the measurement frameworks built around clicks, sessions, and landing pages don't translate cleanly to an environment where the customer may never visit a website.
Until now, ChatGPT advertising required a managed relationship with roughly $200,000 in minimum commitment, according to Adweek. The April self-serve launch removes that barrier, opening the channel to mid-market and growth-stage brands that couldn't justify the upfront cost. According to ppc.land, nearly 80% of current advertisers are small and medium-sized businesses, suggesting broad interest even before the tools are accessible. The expansion also extends internationally, with pilots in Canada, Australia, and New Zealand beginning in coming weeks.
The pattern across these developments is that conversational AI is becoming a meaningful advertising surface before the measurement tools exist to evaluate it rigorously. The brands entering early are making a bet on the format's trajectory, not on proven performance data. That bet may well pay off, but marketing leaders treating this channel the same way they evaluate search or social are applying the wrong framework to a fundamentally different kind of interaction. Channels built around direct audience engagement like enterprise webinar programs, gated video events, community-driven content, have developed measurement models based on engagement depth rather than click-through, and those frameworks may prove more applicable to conversational AI than search-derived attribution.
