OpenAI Reports 1.2 Billion Weekly ChatGPT Users

During its recent DevDay event, OpenAI revealed that ChatGPT has reached a massive milestone of 1.2 billion weekly active users. The company also shared that its enterprise-focused ChatGPT Work and Codex tools have surpassed 35 million weekly users, with 2.5 million businesses now actively utilizing OpenAI products. This surge in adoption has propelled OpenAI's annualized revenue rate to nearly $70 billion, representing an approximate 70 percent increase since the beginning of the third quarter.

This rapid financial growth comes amid fierce competition, particularly from Anthropic. Anthropic's annualized revenue rate reportedly crossed the $65 billion threshold in July and may currently match or exceed OpenAI's figures as it prepares for a potential initial public offering as early as November. To maintain its lead, OpenAI has engaged in an aggressive price war against Anthropic's Claude and various Chinese models. This strategy is anchored by the newly launched GPT-6.1-Sol model, alongside the rapid expansion of the Codex coding assistant, which leverages the popular GPT-6 model family.

For AI practitioners and developers, this intense market rivalry and OpenAI's massive scale translate directly into lower operational costs and more powerful tools. The price war surrounding models like GPT-6.1-Sol means that building and scaling applications is becoming significantly cheaper. However, the sheer volume of users also highlights the immense infrastructure demands of modern AI. The ultimate success of these platforms will depend on whether this soaring enterprise adoption can generate enough revenue to offset the astronomical data center bills required to keep these models running.