OpenAI — Weekly Active Users: 900 million

NoteThe source directly confirms the claim with exact matching data. The claim states 'OpenAI's Weekly Active Users = 900M (exact stored value: 900,000,000) (as of 2026-02)' and the source explicitly states 'On February 27, 2026, OpenAI announced that ChatGPT had surpassed 900 million weekly active users.' The date (February 27, 2026 = 2026-02) and the user count (900 million = 900,000,000) match precisely. The source is the official announcement from OpenAI as reported by ALM Corp, making this a direct confirmation.