Generative artificial intelligence has spread faster than earlier landmark technologies, reaching 53 percent of the global population within three years of the November 2022 launch of ChatGPT, according to Stanford University 2026 AI Index Report. That pace outran the adoption curves of both the personal computer and the internet at the same point in their histories.

Enterprise uptake is nearly universal in at least a narrow sense. About 88 percent of organizations report using AI in at least one business function as of 2026. Marketing has become the leading point of entry: enterprise marketing teams now report 94 percent adoption, and 87 percent of marketers use generative AI in at least one recurring workflow as of the first quarter of 2026, up from 51 percent two years earlier.

The function-level data marks a shift in where AI lands first inside companies. Marketing and sales overtook supply chain as the top AI deployment area for the first time since the underlying survey began in 2018. Spending followed the same pattern, with marketing budgets for AI rising 64 percent year over year and sales close behind.

The report also flags a persistent gap between usage and measurable results. While 88 percent of organizations use AI, a much smaller share report significant profit impact, a spread that researchers describe as the central tension of AI adoption in 2026. Closing it, the data suggests, depends less on access to tools than on how deeply companies rebuild workflows around them.

Source: Stanford HAI - https://hai.stanford.edu/ai-index/2026-ai-index-report