OpenAI Says ChatGPT Ads Hit $1B Annualized Run Rate in Under 200 Days as Self-Serve Opens in India

OpenAI disclosed Monday that its ChatGPT advertising operation has crossed a $1B annualized revenue run rate, less than 200 days after the February 2026 pilot began and days after launching in India with 50 brands via WPP and Omnicom. The company opened self-serve ad tooling to marketers in India, Europe, the Middle East and North Africa (India-based advertisers get a ₹725 daily minimum starting Sept 4). OpenAI is guiding to $2.5B in ad revenue this year against a company-wide $40B+ run rate — pitching a 'diversified business model' ahead of its IPO.