OpenAI's ChatGPT Enterprise, under the leadership of Chief Operating Officer Brad Lightcap, has seen its number of paying customers soar to over 600,000 from around 150,000 in January. This surge reflects a broader trend of increasing adoption of AI in the enterprise sector, with 2024 being dubbed the 'year of adoption for AI in the enterprise'. OpenAI has also expanded its workforce significantly, growing from approximately 800 to 1,200 employees across various global locations including San Francisco, London, Dublin, and other areas, marking a 50% increase in company headcount within five months. Moreover, OpenAI has made ChatGPT accessible without an account, aiming to broaden AI's reach while ensuring content safeguards. The company is also working on publishing partnerships and has expanded its custom model training program.