According to CoinMeta, as reported by CNBC, OpenAI's advertising business generates an annual revenue of $1 billion. This business has become an important source of income, second only to enterprise services, consumer subscriptions, and API billing, contributing to supporting OpenAI's valuation of around $852 billion and its IPO development process. OpenAI began testing ChatGPT advertising in the United States in February of this year, and currently, ChatGPT Ads has covered more than 40 countries, with self-service advertising available in India, Europe, and the Middle East and North Africa regions. The ads are displayed to both ChatGPT Go subscribed users and free users, reaching approximately 1 billion weekly active users. OpenAI ensures that ads are clearly labeled and do not affect ChatGPT responses, and advertisers do not have access to users' private chat content.