OpenAI co-founder and president Greg Brockman said the company could be ready for an initial public offering in 2027, citing growing revenue from enterprise customers. As of April 2026, those customers accounted for more than 40% of OpenAI’s revenue, while its annualized revenue run rate reportedly jumped 70% in the third quarter. Enterprise sales more than doubled over the same period, with growth driven partly by GPT-5.6 Sol and ChatGPT Work. OpenAI filed a confidential draft S-1 with the Securities and Exchange Commission in June 2026 but has not set a listing date, exchange, or offering price, while rival Anthropic could reach public markets before the end of 2026.
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