
OpenAI API in 2026: Features, Models & Use Cases
92% of Fortune 500 companies use ChatGPT products as of 2026, and ChatGPT Enterprise message volume has grown 8x year-over-year. That adoption story started with employees using ChatGPT for individual tasks. It has since moved to engineering teams building directly on the OpenAI API, embedding model capabilities into products, internal tools, and automated workflows at scale. According to Gartner, more

