OpenAI — Business Customers: 1 million

The source text directly confirms that OpenAI announced 'more than 1 million business customers' on November 5, 2025. The claim states '1,000K' (which equals 1 million) as of 2025-09, and the source announcement is from November 5, 2025, which is after September 2025. The source explicitly states this milestone was reached and announced on that date. The numerical value matches (1 million = 1,000K), and the temporal reference is consistent (the announcement occurred in November 2025, confirming the milestone was achieved by or before that time, which satisfies the 'as of 2025-09' claim).