Anthropic Surpasses OpenAI in Business Customer Count
5Recently, a new trend has emerged in the AI industry. For the first time, Anthropic has more verified business clients than OpenAI, according to data from Ramp. This shift highlights how quickly Anthropic is gaining ground among enterprise users.
What the Data Shows
The Ramp AI Index, which analyzes expense data from over 50,000 companies, reveals that 34.4% of participating businesses pay for Anthropic services. Meanwhile, only 32.3% pay for OpenAI. This marks a historic milestone for Anthropic, as it now leads in business adoption.
The index is based on companies that use Ramp, so it’s not a perfect industry-wide snapshot. Still, it offers a strong indication of broader trends. The data shows that Anthropic’s growth has accelerated significantly over the past year, especially since May 2025, when only 9% of companies used its products.
Growth and Market Shift
Over the last 12 months, the number of businesses paying for Anthropic’s AI tools has increased by 26%. In contrast, OpenAI’s share has slightly declined by 1%. During the same period, overall AI adoption among companies has risen by 9%, showing growing industry interest in AI solutions.
Experts note that Anthropic focused initially on highly technical customers, such as finance and tech sectors. This targeted approach helped the company succeed early on. Now, it appears to be expanding more broadly, thanks to tools like Cowork that make its AI accessible to a wider audience.
While some industry insiders remain cautious about whether this lead will last, the past year’s growth proves that Anthropic’s strategy has worked well so far. The company’s ability to attract high-value clients has significantly boosted its profile in the enterprise AI space.
Overall, this shift indicates a changing landscape. As more companies adopt AI tools, the competitive balance among AI labs continues to evolve. Anthropic’s recent success underscores the importance of tailored solutions and strategic growth in this fast-moving industry.
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