OpenAI ChatGPT Ads Reach $1 Billion Annualized Revenue

OpenAI announced on Monday that its advertising business within ChatGPT has reached a $1 billion annualized revenue run rate in less than 200 days since its launch, marking a significant milestone as the company prepares for a potential initial public offering. The rapid achievement underscores the growing demand for advertising within AI-powered conversations and provides OpenAI with a major new revenue stream beyond subscriptions and enterprise contracts. The company began testing ads inside ChatGPT in the United States in February 2026.