OpenAI told investors it would make $100 billion a year from advertising by 2030. According to Emarketer’s analysis, the entire U.S. chatbot advertising market — every player, every platform — will generate just $5.41 billion by that year. OpenAI’s own forecast overshoots the total addressable market by nearly 20 times.
🔍 THE BOTTOM LINE
OpenAI’s ad revenue projections assume it captures the entire chatbot ad market, displaces Google Search budgets, and outperforms every ad format in history — simultaneously. Emarketer’s data says standalone chatbots will generate less than $1 billion in U.S. ad revenue this year. The $100 billion figure isn’t aspirational; it’s arithmetic-defying.
What the Numbers Actually Say
OpenAI began its ad trial in February, inserting sponsored results into ChatGPT search queries. Two months later, the company was citing $2.5 billion in projected ad revenue for 2025 and $100 billion by 2030.
Emarketer’s forecast, reported by Adweek’s Trishla Ostwal, paints a different picture. Standalone chatbots — including ChatGPT, Microsoft Copilot, Google AI Mode, and Amazon Alexa for Shopping — will collectively generate less than $1 billion in U.S. ad revenue this year. By 2030, the ceiling for the entire chatbot ad market is $5.41 billion.
That means OpenAI’s $100 billion target is not a 90% miss. It’s a 95% miss against the total market, and a 100% miss against its own slice of it.
The Three Assumptions That Don’t Hold
The forecast, as Emarketer dissected it, rests on three pillars — each questionable on its own, together implausible:
1. Chatbots capture search ad budgets en masse. Google’s search ad revenue was roughly $240 billion in 2025. Even a 2% migration to chatbot interfaces would represent the most rapid ad-format shift in history. Emarketer sees no evidence of that velocity.
2. OpenAI dominates a mature chatbot ad market. The chatbot ad market is not mature. It is nascent, fragmented across at least four major players, and has no proven format beyond sponsored links that look like search ads from 2005.
3. ChatGPT outperforms every ad format ever launched. The $100 billion figure would put ChatGPT ads ahead of YouTube’s ad revenue ($36 billion in 2025) and approaching Google Search’s total. In five years. From a product that launched in February.
Why This Matters for the IPO
OpenAI filed for its IPO earlier this year, and the ad revenue projection is part of the growth narrative underpinning its valuation. The company is also racing Anthropic to the public markets, as we covered in the OpenAI-Anthropic IPO race.
If ad revenue is a meaningful component of the bull case, Emarketer’s 90% miss estimate isn’t a footnote — it’s a material risk to the valuation. OpenAI’s subscription revenue ($20/month for ChatGPT Plus) scales with user growth. Ad revenue was supposed to be the second engine. If the second engine produces $5 billion instead of $100 billion, the growth story changes.
This comes at a time when OpenAI is already losing key executives, with safety head Jan Leike departing and Fidji Simo stepping down over health concerns. The ad revenue miss adds a financial question to the leadership and governance questions already in play.
The NZ Angle
New Zealand advertisers spend roughly $1.2 billion annually on digital ads, with Google and Meta absorbing 70%+ of that spend. If chatbot advertising remains a sub-$5 billion global market, the trickle-down to NZ is negligible — meaning local agencies and brands should treat AI-native ad formats as experimental, not strategic. The budget that was supposed to migrate from Google Search to ChatGPT is, for now, staying put.
What Happens Next
OpenAI’s ad business is five months old. It could grow faster than Emarketer expects — the firm’s own track record on predicting new ad formats is mixed. But the gap between $100 billion and $5.41 billion is not a forecasting disagreement. It’s a difference of 95%, which means one of the two estimates is operating in a different reality.
The most likely outcome: OpenAI’s ad revenue becomes a rounding error in its financials, subscription and enterprise API revenue carry the business, and the $100 billion figure joins the long list of AI projections that sounded good in a pitch deck and didn’t survive contact with the market.
❓ FAQ
Is OpenAI actually losing money on ads? Not losing — generating, just at a fraction of the projected rate. The ad trial launched in February and is running, but the revenue is measured in tens of millions, not billions.
Could the chatbot ad market grow faster than Emarketer predicts? Possibly. But Emarketer’s forecast already assumes significant growth — from under $1 billion today to $5.41 billion by 2030. Getting to $100 billion would require a growth rate that no ad format in history has achieved, including Google Search in its early years.
Does this affect ChatGPT users? Not directly. If ad revenue falls short, OpenAI may push harder on subscription tiers or enterprise pricing. The free tier could see more ads, or the Plus tier could see a price increase.
What about Google and Meta’s AI ad products? Google’s AI Mode and Meta’s AI assistants are also in the chatbot ad race. Emarketer’s $5.41 billion figure includes all of them — not just OpenAI. The market is fragmented, and no single player has a dominant format yet.
🔍 THE BOTTOM LINE
OpenAI’s ad revenue forecast is off by 90% or more, depending on how you measure it. The chatbot ad market is real but small — less than $1 billion this year, perhaps $5 billion by 2030. The $100 billion figure was always a story for investors, not a number grounded in market analysis. With the IPO looming, the gap between projection and reality is about to become everyone’s problem.
