OpenAI has released "ChatGPT Enterprise," a version of its ChatGPT tool specifically designed for businesses, offering improved security, privacy, and functionality. Companies like Block, Estee Lauder Companies, and PwC are already early customers, and employees from over 80% of Fortune 500 companies have started using ChatGPT. This comes after temporary restrictions on the tool's use by companies like JPMorgan Chase. Parent company Microsoft recently introduced Bing Chat Enterprise, a similar business-focused tool.