OpenAI used Cannes Lions to tell advertisers something plain: ChatGPT is no longer just a product people use, it's a place where the company wants brands to spend money.
OpenAI did not go to Cannes Lions this week to sound curious about advertising. It went to France to sell. At the 2026 festival, where more than 13,000 media, technology and marketing people gathered, according to the New York Post, the company put its ad ambitions in front of the same CMOs and agency executives who normally spend the week being courted by Google, Meta, Amazon and the media networks chasing them.
That is the story here. OpenAI wants the ad industry to stop treating ChatGPT as a creative tool sitting on the side of the marketing department and start treating it as a media channel. Denise Dresser, OpenAI's chief revenue officer, reportedly told the room on June 22 that the company is "clearly in the advertising business now." You don't say that at Cannes by accident.
The pitch is sharper than a banner ad wrapped in AI language. Dresser framed the shift as a move from the attention economy to the intelligence economy. Strip away the phrase and the commercial point is simple enough: a person asking ChatGPT which laptop to buy, where to stay in Rome, or which credit card fits their spending is closer to a transaction than someone half-watching a video feed. If OpenAI can prove that intent without making the product feel polluted, advertisers will test it.
As AdExchanger reported from Cannes, OpenAI has been telling marketers that roughly one-fifth of ChatGPT queries carry commercial intent, with travel, retail and financial services among the strongest categories. The same report said OpenAI launched its ad product in February 2026, crossed $100 million in annualized revenue within six weeks and signed more than 600 advertisers. Those are early numbers, but they're not hobby numbers.
OpenAI's own projections are far larger. The company is aiming for $2.5 billion in ad revenue by December, then $11 billion in 2027, $25 billion in 2028 and $100 billion by 2030. The New York Post also pointed to the $2.5 billion figure in its Cannes coverage, where AI was one of the dominant conversations of the week.
Don't confuse a projection with a business. That $100 billion figure would put OpenAI in the neighborhood of the largest digital ad companies in the world, and ChatGPT is nowhere near Google's search scale today. Analyst estimates cited in the article put ChatGPT's commercial traffic at only about 1 to 3 percent of Google's. Google can still print money from search because it has the habit, the auction and the measurement stack. OpenAI has the habit. The rest is still being built.
That makes the ad performance details matter. Early pilots reportedly started around $60 CPMs before settling closer to a $15 to $35 range, while click-through rates around 0.9 to 1.3 percent remain a long way from Google's strongest commercial search benchmarks. If you're a marketer, you can tolerate weak efficiency in a test budget. You won't tolerate it forever.
The investor story is changing too
The Cannes push also gives OpenAI a cleaner story for Wall Street. Investor's Business Daily reported on June 25 that OpenAI is considering delaying its IPO until 2027 after confidentially filing with the SEC on June 8. The same report said advisers are watching unstable AI stock sentiment and the pullback in SpaceX after its public-market surge.
An ad business changes what investors are being asked to believe. Subscriptions and API usage can grow quickly, but both sit under pressure as model prices fall and competitors chase the same enterprise budgets. Advertising is different. If it works, it lets OpenAI turn consumer attention into revenue without charging every user directly.
That's why Cannes mattered. OpenAI wasn't only trying to impress brand executives in beachside meeting rooms. It was also building a valuation argument. A company that can say it has subscriptions, developer revenue and a fast-growing ad business is easier to sell at a giant number than one asking investors to fund compute costs on faith.
There is a harder issue underneath all this, and OpenAI can't talk its way around it. ChatGPT became valuable because users treat it like a private conversation. Advertising makes that trust more fragile. The moment a recommendation feels paid for, or a sponsored answer isn't marked clearly enough, the product starts to feel less like an assistant and more like another feed trying to steer you.
Frankly, that is the test. OpenAI can call this the intelligence economy if it wants. Advertisers will call it inventory if the numbers work. Users will call it annoying if the ads get in the way.
For now, OpenAI has done the important first job: it has made the ad industry take the pitch seriously. The next job is harder. It has to show that a commercial answer inside ChatGPT can make money without making the conversation feel bought.
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