OpenAI has said advertising could generate $102 billion in revenue by 2030, but a new estimate from Emarketer suggests the company is still far from even 1% of that figure.
In its latest analysis, Emarketer said OpenAI’s advertising revenue trajectory may come in 90% below the $100 billion line the company had projected five years out. The report frames the gap as a basic credibility test: if a company says one line of business will grow more than 100-fold within five years, investors are likely to question the assumptions before they applaud the ambition.
Emarketer puts chatbot ad market ceiling at $5.4 billion
Emarketer’s central argument is that the market itself is much smaller than many expect. The firm estimated that the total addressable market for chatbot advertising has a ceiling of just $5.4 billion.
Part of that comes down to maturity. Search and social media advertising took more than two decades to build into massive businesses. Chatbot advertising is still at an early stage. The report also points to a structural issue in product design: search and social are browsing environments, where ads can be inserted without fully interrupting what users are doing. Chatbots are question-and-answer environments. An ad inserted into that flow interrupts the conversation, which limits how much inventory can realistically be monetized.
2026 industry estimate falls well short of OpenAI’s own target
Emarketer estimated that by 2026, the combined advertising revenue of OpenAI, Microsoft, Google, and Amazon may still be below $1 billion. OpenAI’s own external projection is much higher. The company has said it expects its standalone AI ad revenue to reach $2.5 billion by the end of 2026.
That is where the 90% gap comes from: less than $1 billion for four major companies combined, versus $2.5 billion for OpenAI alone.
AdWeek says the forecast would require three separate miracles
AdWeek argued that for OpenAI’s numbers to work, three things would need to happen at the same time.
- Advertisers would have to move budget away from long-established search and social buying habits and agency contracts, and redirect that spending into chatbots.
- OpenAI would need to beat companies such as Google and Meta in ad sales, even though those firms have spent more than 20 years building their positions in search and social advertising.
- The broader AI advertising market would have to jump from a six-figure business in 2026, meaning only hundreds of thousands of dollars, to a 12-digit market worth $100 billion by 2030.
The report’s conclusion is blunt: each of those conditions is hard on its own, and together they look more like a wish list than a financial forecast.
Advertising is a core support in OpenAI’s revenue model
At the same time, the report said the wider AI industry has already spent more than $1.6 trillion on data centers, chips, and power contracts to support these growth narratives. The money is already going out. The revenue story is still catching up, and advertising had been expected to help carry cash flow.
According to The Information, OpenAI projects that advertising revenue will reach $102 billion in 2030 and account for 36% of the company’s total revenue that year. If that business does not scale as planned, the weakness would not sit inside one product line. It would affect a pillar that was supposed to support more than one-third of OpenAI’s revenue story over the next five years.
For investors, that 36% is not a side detail. It is a core assumption inside the valuation model.