OpenAI CEO Sam Altman has observed distinct generational differences in the use of ChatGPT. Older users tend to use the AI as a "replacement for search engines," while those in their 20s and 30s see it as a "life advisor." In contrast, Gen Z users treat ChatGPT as an "operating system," engaging deeply with its features such as complex prompts and memory functions. This generational shift mirrors the early adoption patterns seen with smartphones. According to 2025 reports, over one-third of U.S. users aged 18–24 are actively using ChatGPT, highlighting its growing influence among younger demographics. Gen Z's interaction with AI is notably different, often involving consultation with ChatGPT before making significant life decisions.