Ten weeks ago, OpenAI launched advertising inside ChatGPT at a $60 CPM. Today it is operating more like a seasoned ad network — the company has quietly activated cost-per-click (CPC) bidding, letting advertisers pay only when a user actually taps through. The move marks a strategic pivot that brings the world’s most widely used AI assistant into direct competition with Google Search and Meta’s performance ad ecosystem.
From Impressions to Performance
OpenAI’s ad manager now gives marketers a binary choice: optimize campaigns for views and pay a CPM, or optimize for clicks and set a maximum bid per click. Bids are currently structured between $3 and $5 per click, according to reporting by Digiday. That is a meaningful entry point for performance advertisers who have long measured returns on cost-per-acquisition rather than awareness metrics.
The shift was not driven by advertiser demand alone. Since the ad pilot launched, CPMs have slid sharply — from $60 at launch to as low as $25 in some campaigns — a sign that supply is outpacing demand at premium rates. CPC gives OpenAI a revenue lever that does not depend on holding floor prices up. If users click, the platform earns; if they do not, advertisers carry no risk.
The Revenue Math
Despite the CPM compression, the early trajectory is striking. OpenAI’s ad pilot has crossed $100 million in annualized revenue in under two months, according to PYMNTS. The company projects $2.5 billion in full-year 2026 advertising revenue — a figure that would place it among the top ten digital ad platforms in the United States within its first year of operation.
That ambition requires something CPC can help deliver: accountability. Brand advertisers are comfortable with CPMs for awareness; performance marketers are not. By offering a click-based model, OpenAI unlocks budgets from e-commerce, travel, financial services, and SaaS categories that have historically been Google and Meta’s strongest verticals.
Measurement Remains the Open Question
The scale of the opportunity comes with a structural challenge. As eMarketer notes, OpenAI is seeking premium ad rates before it has built premium measurement infrastructure. Google took years to develop the attribution tooling — conversion tracking, view-through windows, multi-touch models — that convinced direct-response buyers to scale spend. ChatGPT, for now, remains a largely closed environment where last-click attribution is difficult and cross-device tracking is nascent.
OpenAI is also threading a brand-safety needle. ChatGPT’s users come with strong intent signals and a high willingness to engage, but the conversational context makes intrusive or irrelevant advertising more jarring than a banner ad scrolled past on a webpage. How the company governs ad quality, category exclusions, and contextual relevance will shape whether performance advertisers stick around or treat this as a test budget.
What It Means for the Industry
The activation of CPC inside ChatGPT is less a product update than a declaration of intent. OpenAI is not building a niche sponsored-content product; it is constructing a full-stack performance advertising platform at scale. With over 500 million weekly active users as of early 2026, the audience is already there. The question is whether the infrastructure, measurement, and trust will catch up before advertisers start pulling test budgets.
For Google and Meta, the threat is real but not yet existential. ChatGPT ads sit at the top of the funnel — closer to discovery than to conversion — and the CPC product is still in early stages. But the direction of travel is clear. The AI interface layer is becoming an advertising layer, and OpenAI intends to own a significant slice of it.
Sources: Digiday · PYMNTS · The Information · eMarketer
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