Anthropic now has more business customers than OpenAI, according to Ramp data

For the archetypal time, Anthropic has much verified concern customers than OpenAI, according to this month’s AI Index from the fintech steadfast Ramp. 

The survey, compiled from Ramp’s clients’ disbursal data, shows 34.4% of participating businesses are paying for Anthropic services, much than immoderate different AI lab, portion lone 32.3% wage for OpenAI.

It is the archetypal clip Anthropic has held the apical position.

“Anthropic has already been successful the pb amongst the precocious adoption groups similar finance, tech, nonrecreational services,” Ramp economist Ara Kharazian told TechCrunch. “It’s crossed the different firms wherever OpenAI inactive has a lead, but that has been shrinking implicit the past mates of months.”

Because the scale lone represents companies that usage Ramp, it’s not a cleanable proxy for the marketplace astatine large. Still, the illustration includes much than 50,000 companies, making it some wide and divers capable to transportation weight.

More importantly, the wide inclination tin beryllium seen crossed the industry. On OpenRouter’s leaderboard, which samples a antithetic information of users, OpenAI past ranked supra Anthropic successful December 2025.

According to Ramp’s figures, the past 12 months person been peculiarly transformative for Anthropic. In May 2025, a specified 9% of businesses were paying for Anthropic products, a fig that climbed 26% successful the pursuing 12 months. Over the aforesaid period, OpenAI’s stock declined by 1%, and the wide stock of businesses utilizing immoderate benignant of AI merchandise accrued by 9%.

Kharazian is skeptical astir whether this vantage volition last, for reasons helium explained successful a blog post, but said the occurrence of the past twelvemonth was impervious that Anthropic had chosen a bully strategy.

“What Anthropic did worked truly well,” Kharazian told TechCrunch, “which was — commencement with a precise method lawsuit base, absorption connected their needs, truly win successful execution and past commencement broadening retired done tools similar Cowork.”