OpenAI announced Monday that its advertising business, launched just 200 days ago, has reached a $1 billion annualized revenue run rate. The company is touting this milestone as proof of its diversified business model, as it prepares for a massive IPO and aims to justify its $852 billion valuation. ChatGPT Ads are now available in over 40 countries, with self-service access rolling out across India, Europe, the Middle East, and North Africa.