As the use of artificial intelligence (AI) by U.S. corporations spreads rapidly, 46.6% of all corporations were found to have adopted AI models. At the same time, the adoption rate of OpenAI's ChatGPT stopped falling and rose again, the report found.
According to a report released on the 15th (local time) by the corporate expenditure management platform Ramp, as of Dec. 2025, 46.6% of U.S. corporations use AI models. In effect, one out of every two U.S. corporations is using AI in its work.
During the same period, the share of U.S. corporations that adopted ChatGPT was 36.8%, up 2 percentage points from a month earlier. This reversed the downward trend that continued from September to November and surpassed the previous record high (36.5%) set in August last year.
Ramp said ChatGPT showed growth in both paid enterprise subscriptions and developer API expenditure. It was analyzed that use of OpenAI models increased not only among office workers but also among developers on technical teams.
Adoption of other AI models by corporations only inched up during the same period. However, Ramp added that because some models are included for free in subscriptions for email and cloud-based productivity tools, the actual number of corporations using them may be higher than the statistics suggest.