OpenAI said on August 31 that its advertising business has reached $1 billion in annualized revenue run rate, a milestone the company is framing as evidence of a "diversified business model" as it prepares for an initial public offering1,2.
The ad business is roughly 200 days old. OpenAI began testing ads within ChatGPT in the U.S. in February, a move the company described as both highly anticipated and controversial. The company said it is now expanding the ad business globally.
OpenAI is under pressure to justify its $852 billion valuation to investors ahead of what is expected to be a large IPO. The company said Monday that advertising builds on its existing revenue engines, including enterprise offerings, consumer subscriptions, and usage-based application programming interfaces.
Anthropic responded to OpenAI's ad push earlier this year with a Super Bowl commercial, positioning itself as a rival that rejected the advertising model.
ANALYSIS Reaching $1 billion in annualized ad revenue within roughly 200 days of launch gives OpenAI a concrete diversification data point to present to prospective public-market investors, separate from its subscription and API lines. The speed of that ramp also places advertising-derived revenue alongside enterprise and consumer subscriptions as a third distinct pillar in OpenAI's pre-IPO financial narrative.
OpenAI's IPO preparations come during a period of operational complexity for the company. OpenAI recently notified SpaceX that it will wind down its contract providing models to Cursor, with a proposed shutoff date of November 12, 2026, following SpaceX's $60 billion acquisition of the AI coding assistant ctx.