ChatGPT's advertising pilot has become a real business faster than anyone expected. Six weeks after launching on Super Bowl Sunday in February 2026, the platform crossed $100 million in annualized revenue. OpenAI is now projecting $2.5 billion in ad revenue by the end of 2026, and $53 billion by 2029. This marks a dramatic shift for a company whose CEO spent years calling advertising a "last resort."

How Are ChatGPT Ads Actually Working?

If you're a free ChatGPT user, you may have already seen these ads without realizing it. They appear as a single labeled unit below a ChatGPT response when there's a relevant match to your conversation. OpenAI has been clear that advertisers cannot shape or alter what the AI tells you. Each ad includes an options menu showing basic information about who's behind it and why you're seeing it.

Early advertisers testing the platform include Target, Ford, Adobe, Mrs. Meyer's, and Expedia. When the program started, the initial minimum spend was $200,000 to $250,000, restricting the pilot to enterprise brands. Self-serve access launched in April 2026, which opened the door to mid-market advertisers and changed the competitive picture significantly.

What Do the Early Performance Numbers Tell Us?

The data reveals some interesting patterns about how users are responding to these ads. Testing began in the US on February 9, initially reaching about 1% of ChatGPT mobile users. As of late March, fewer than 20% of eligible users were seeing ads each day. The click-through rate (CTR) is sitting around 0.91%, which is roughly seven times lower than Google's search ads. In other words, most people scroll past the ads, but that doesn't necessarily mean the format is failing.

OpenAI's own update from May 7 indicated they're seeing no impact on consumer trust metrics and low dismissal rates. This is exactly what the company needed to show investors and tell early advertisers. The company has also announced expansion of the pilot to the UK, Mexico, Brazil, Japan, and South Korea in the coming weeks.

Why Is This a Bigger Deal Than It Looks?

The context here matters. ChatGPT has 800 million weekly active users, but fewer than 5% pay for a subscription. That means more than 95% of users are consuming expensive computing infrastructure without generating any direct revenue. Those free users represent an enormous audience asking intent-rich questions that traditional search never captured as cleanly.

This is also happening against the backdrop of a competitive strategy shift in the AI industry. Anthropic spent millions on Super Bowl spots saying "Ads are coming to AI. But not to Claude," and saw an 11% jump in daily active users as a result. Meanwhile, Perplexity, which had been testing sponsored formats, abandoned advertising altogether and is now targeting $500 million in subscription revenue as the explicitly ad-free alternative.

Steps to Getting Started With ChatGPT Ads

• Access the Platform: Anyone with a paid ChatGPT account can now build a paid ad account within OpenAI through the OpenAI Ads Manager with no minimum spend requirement, making it accessible to smaller brands than the initial pilot allowed.
• Choose Your Bidding Model: The platform offers both cost-per-click (CPC) and cost-per-thousand-impressions (CPM) bidding options, similar to Meta and Google Ads, making it familiar to most digital marketers.
• Monitor Brand Safety: While the ads sitting below a ChatGPT response is a safer model than some feared, generative AI still produces unexpected outputs, so you'll want a monitoring plan before scaling spend.
• Test Early: This is a great time to learn early lessons and understand how your brand performs in this new format before the market becomes saturated.

For brands considering whether to test ChatGPT ads, the case for being in early is compelling. The platform offers access to an enormous free user base asking high-intent questions. However, there are caveats. The click-through rate is currently low, and conversions tracking is not yet available. Targeting transparency is still opaque, and you don't fully control where your ads show up yet.

The broader market opportunity is substantial. The US market for AI search advertising is projected to grow from $1 billion in 2025 to $25.9 billion by 2029, representing 13.6% of all digital advertising spending. ChatGPT's early success in monetizing its free user base through ads suggests that OpenAI has found a path to profitability that doesn't require forcing users to pay for access.

What's particularly interesting is how this strategy differs from competitors. While Claude and Perplexity are betting on premium subscription models, ChatGPT is scaling its free user base on ad revenue. Industry observers expect that we'll eventually see freemium models from the premium players in the long run, suggesting this may not be the final form of AI monetization.