**[OpenAI's Advertising Revenue Annualized at $1 Billion, Accelerating IPO Narrative]** According to CNBC, OpenAI announced that its advertising business has reached an annualized revenue run rate of $1 billion. The company stated that advertising has become a significant revenue driver alongside enterprise services, consumer subscriptions, and API billing, helping to support its approximately $852 billion valuation and its upcoming IPO. Since February this year, OpenAI has been testing advertisements in ChatGPT in the U.S., and the "ChatGPT Ads" feature is now available in over 40 countries, including regions such as India, Europe, and the Middle East and North Africa, with self-service ad placement options. Ads are shown to both ChatGPT Go subscribers and free users, covering its approximately 1 billion weekly active users. OpenAI also emphasized that ads will be clearly labeled, will not affect ChatGPT's responses, and advertisers will not have access to users' private chat content.