OpenAI announced on Monday that its advertising business has reached a $1 billion annualized revenue run rate in less than 200 days after launching, as the company works to demonstrate it can generate income beyond subscriptions while preparing for a public listing at a valuation above $1 trillion. The milestone underscores how quickly advertising — a revenue stream OpenAI once ruled out — has become a core part of its business mix as it courts public-market investors.

ChatGPT ad revenue milestones

The company reported that its ChatGPT advertising business generated $1 billion in annualized revenue within fewer than 200 days of launch. In its announcement, OpenAI said its revenue comes from "consumer subscriptions, enterprise offerings, and usage-based APIs" — and now advertising.

Ads currently reach users on ChatGPT's free tier and its lower-cost Go plan. OpenAI puts the free plan's audience at more than 1 billion weekly active users, and the advertising model is what helps keep the free version running. That scale places ChatGPT's free audience in the same range as the largest social platforms, and monetizing free users through ads is the model long used by companies such as Meta and Google, the industry's dominant ad businesses.

Tens of thousands of advertisers now buy space on the platform. The company said small and medium businesses have become a "material share of the business" since it opened a self-service Ads Manager in May. As of August, the self-serve buying feature was available in more than 40 countries and is now open to marketers across India, Europe, the Middle East, and North Africa.

India, one of ChatGPT's largest markets by weekly users, received the ad rollout last week with 50 brands on board along with the agencies WPP and Omnicom. A self-serve tool for Indian marketers is set to open on September 4, with a daily minimum spend of ₹725, or about $7.60 — a pricing level clearly aimed at small businesses rather than the large brands that typically anchor new ad platforms.

Earlier this year, OpenAI added cost-per-click billing, which charges advertisers only when someone clicks, and dropped a $50,000 minimum spend when it opened the platform to all U.S. businesses. Both moves mirror the self-serve, performance-based pricing models that helped earlier online ad platforms widen their advertiser bases.

OpenAI's shifting stance on ads

Chief executive Sam Altman once resisted the idea of advertising on the platform. Speaking to a Harvard audience in May 2024, he said mixing ads and AI felt "uniquely unsettling" and called advertising a "last resort."

Rival Anthropic built its first Super Bowl campaign around mocking OpenAI's move into ads, portraying a chatbot that twists user questions into emotional pitches. Altman called the trolling "funny" but "clearly dishonest." The rivalry extends to the public markets, where Anthropic is expected to list ahead of OpenAI.

OpenAI maintains that its ads are clearly labeled and do not interfere with the answers its chatbot provides. Advertisers also cannot see what users type in private. Trust in chatbot answers is a key asset for OpenAI, and the company has repeatedly framed its ad product as designed to avoid the incentive problems that have long drawn criticism to search and social advertising.

Financial performance and IPO outlook

OpenAI reported $6.7 billion in revenue for the second quarter of 2026, up from $5.7 billion the quarter before. However, the company posted a $38.5 billion net loss in 2025 on $13.07 billion of revenue. It is targeting $2.5 billion in ad revenue this year and total annualized revenue above $40 billion — roughly double its reported figures at the end of 2025. That means advertising, even at its $1 billion run rate, still represents a small slice of overall revenue, though it is one of OpenAI's newest and fastest-scaling lines.

Despite these financial projections, Cryptopolitan has reported that at least 14 executives left OpenAI in 2026, fueling doubts about the near-$1 trillion valuation the company wants to carry into public markets. Anthropic is expected to list first, while OpenAI said in June that its own debut "may be a while." How quickly the ads business scales toward its $2.5 billion target, and how investors weigh OpenAI's losses against that growth, are among the questions ahead of any listing.