OpenAI Is Now Selling Ads Inside ChatGPT While Perplexity Walked Away From Them

Is an AI chatbot now a real advertising channel a business can budget for the same way it budgets for Google Search? As of February 9, 2026, ChatGPT is: OpenAI began showing ads that day to some US users on ChatGPT's Free tier and its $8-per-month Go subscription plan, while Plus, Pro, Business, Enterprise and Education subscribers remain ad-free ¹². Google answered from the opposite direction, folding new sponsored formats directly into the AI Mode infrastructure it already sells through Google Ads. Perplexity, having run the same experiment two years earlier, arrived at the opposite conclusion and shut its ad program down entirely. Three of the platforms a business's customers now use instead of, or alongside, traditional search have each placed a different bet on advertising, and which bet a given platform made decides whether a business can buy visibility there at all in 2026.

OpenAI's pilot is not a cautious test. Ad placements on ChatGPT carried a minimum advertiser commitment of $200,000, and major holding companies including Omnicom Media, WPP and Dentsu had already secured client placements before the program left its first weeks ¹. The scale behind that commitment is not modest either: OpenAI has told investors to expect $2.5 billion in ad revenue in 2026, climbing to $11 billion in 2027, $25 billion in 2028, $53 billion in 2029 and $100 billion by 2030 ³. For a business, that trajectory is the actual signal worth planning around, not the current ad unit. A platform projecting a 40x revenue increase over four years is a platform that will keep redesigning its ad product, raising its floor prices and courting bigger holding-company commitments every quarter, which means the cost of entry only gets steeper the longer a business waits to test it.

The reason OpenAI walled ads off from its paying subscribers is the same reason a business should treat this inventory carefully rather than as a drop-in replacement for search ads. An Ipsos survey of US adults found that two in three, 63%, think ads will make them trust an AI platform's results less, while just one in three, 36%, think advertising would simplify their experience ⁴. That is not a marginal skepticism gap, it is a majority of the audience walking in primed to discount a sponsored answer before it is even read. A display ad that misses on a search results page costs an advertiser a wasted impression; a poorly targeted or heavy-handed ad inside a conversational answer risks the user's trust in the answer itself, a cost no keyword bid adjustment fixes after the fact.

Perplexity read that same risk and chose to exit rather than manage it. The company introduced Sponsored Questions in November 2024 and onboarded early advertising partners including Whole Foods and Indeed through early 2025, before quietly stopping new advertiser onboarding in October 2025 and confirming a full pivot away from ads in February 2026 ⁵. A Perplexity executive framed the decision in stark terms: "We are in the accuracy business, and the business is giving the truth, the right answers" ⁵. With more than 100 million users, Perplexity is not a small audience to write off, but for a business, it means that audience is not purchasable through a media buy and never will be under the platform's current strategy. Reaching Perplexity's users depends entirely on being the source its model already trusts enough to cite for free, the same Generative Engine Optimization work that earns citations everywhere else, not a campaign a media planner can launch this quarter.

Google took a third path: extending its existing ad machinery into AI Mode rather than building a separate product from scratch. At Google Marketing Live on May 20, 2026, the company introduced Conversational Discovery ads, which answer a person's specific question directly inside AI Mode with creative Gemini builds per query, and Highlighted Answers, which let sponsored results appear inside AI Mode's list-style recommendation responses, alongside an expanded Direct Offers format that has been live with brands including Chewy, Gap and L'Oreal since January 2026 ⁶. Every format, Google states, will "continue to be clearly labeled as 'Sponsored'" ⁶, and the company reports that 75% of people say they make faster, more confident decisions using AI Mode in Search ⁶. For a business already running Google Ads campaigns, this is the path of least resistance into AI-answer advertising: the account structure, the bidding relationship and the brand safety controls a business already has with Google extend into AI Mode rather than requiring an entirely new vendor relationship.

None of this is large money yet relative to total ad budgets, which is exactly why the timing matters. eMarketer projects that US advertisers will spend $25.9 billion on AI search ads in 2029, equal to 13.6% of all search ad spending, up from just 0.7% in 2025 ⁷. A category moving from under 1% to nearly 14% of search ad spend inside four years is not a niche experiment a business can revisit later at the same cost of entry; early advertisers on a growing platform typically buy inventory before competition and pricing catch up, the same dynamic that made early Facebook and TikTok ad spend disproportionately cheap relative to what the same reach costs once a category matures.

The practical takeaway is that "AI search ads" is not one line item a business can add to a media plan, it is three separate decisions with three separate risk profiles. Google AI Mode is the lowest-friction entry point for a business already running Search campaigns, since the infrastructure and brand controls already exist. ChatGPT is a fast-scaling, high-commitment channel best suited to a business with the budget to secure early placement and the creative discipline to respect the trust risk Ipsos's data makes explicit. Perplexity is not a paid channel at all, and treating it as one wastes budget that should instead go toward the organic citation work its own model rewards. Getting that allocation wrong in either direction, ignoring a channel that is about to get expensive or overpaying for one that does not exist, is the actual cost of not tracking this split closely.

Italian DesAIgns builds paid ads strategy around exactly this kind of platform-by-platform reality rather than treating AI-driven advertising as a single undifferentiated category, allocating budget to the formats already live on Google AI Mode, evaluating ChatGPT placements against a business's actual trust and creative tolerance, and channeling Perplexity-focused effort into citation-earning content instead of a media buy the platform will not sell. A quick AI visibility check shows how a business's current content and technical signals line up against the platforms now deciding whether it gets cited for free or has to pay to be seen at all.