OpenAI's advertising business hit an annualized revenue run rate of $1 billion in August 2026, up from $100 million in March 2026.

From the articleOpenAI expands ChatGPT Ads to 26 new countries as diversification push acceleratesAlso in OpenAI expands ChatGPT ads to 26 more countries in bid to boost revenue | Reuters, OpenAI expands ChatGPT ads to more countries: Full list, OpenAI expands ChatGPT ads to 26 more countries as it looks to diversify revenue streams, ChatGPT ads reach 89 countries as advertisers pass 100,000