OpenAI says ChatGPT advertising is expanding to 26 more countries, taking the program to 89 markets. The rollout covers Free and Go users; Plus, Pro and Enterprise remain ad-free. New markets span Latin America, Europe, Africa and Asia, including Argentina, Colombia, Nigeria, South Africa, Ukraine, Bangladesh and Pakistan. The company says more than 100,000 advertisers have used the platform since U.S. testing began in February, and Reuters reports the ads business reached a $1 billion annualized revenue run rate in August. That makes advertising a material second monetization track alongside subscriptions and enterprise sales. The figures are company claims, and the rollout’s revenue, targeting quality and user-trust effects have not yet been independently measured.