Ramp’s latest AI index shows that among the companies in its sample, the percentage paying for Anthropic services has risen to 34.4%, surpassing OpenAI’s 32.3% for the first time. This data, drawn from enterprise spending records, indicates a shifting competitive landscape in the enterprise generative AI market.
The sample covers more than 50,000 companies.
This statistic is derived from fee data compiled by the fintech company Ramp. Although the sample only includes businesses using Ramp and does not fully represent the entire market, it covers over 50,000 companies and remains somewhat indicative.
Ramp economist Ara Kharazian told TechCrunch that Anthropic is currently leading in high-adoption industries such as finance, technology, and professional services. While OpenAI still holds advantages in other sectors, this gap has been steadily narrowing over the past few months.
The growth rate has been significantly faster over the past year.
According to Ramp, Anthropic’s enterprise penetration rate has increased significantly over the past 12 months. In May 2025, only 9% of surveyed companies paid for Anthropic’s products; by this May, that figure had risen to 34.4%.
In comparison, OpenAI’s enterprise paid usage share decreased by 1 percentage point. Meanwhile, the proportion of enterprises using any type of AI product increased by 9 percentage points, indicating that enterprise AI adoption continues to expand, but market share is becoming more divided among vendors.
- Anthropic's enterprise paid占比 is 34.4%.
- Enterprise paid users account for 32.3% of OpenAI.
- Ramp's sample covers over 50,000 enterprises.
Similar changes have also occurred on other platforms.
TechCrunch noted that similar trends are not unique to Ramp's sample. For example, on OpenRouter’s leaderboard, which aggregates usage across different models, OpenAI last ranked above Anthropic in December 2025.
However, Ramp does not believe Anthropic’s lead is already secure. Kharazian stated that it remains to be seen whether this advantage will be sustained, but last year’s performance indicates that Anthropic’s strategy of initially focusing on technical customers and gradually expanding to broader enterprises has been effective.