Anthropic has overtaken OpenAI in business adoption, according to expense data from fintech platform Ramp. The survey, which analyzed spending patterns across Ramp's client base, found that 34.4% of participating businesses pay for Anthropic services compared to 32.3% for OpenAI.

This marks a notable shift in the enterprise AI market. Ramp's data aggregates actual spending rather than relying on surveys or user claims, making it a more concrete measure of commercial traction. The gap between the two labs remains narrow, but Anthropic's lead suggests its Claude models are gaining ground with business customers.

Several factors likely contribute to Anthropic's momentum. Claude has earned strong marks for reasoning capabilities and longer context windows, which appeal to enterprises handling complex tasks. Anthropic also built its brand around AI safety from the start, a messaging that resonates with risk-conscious corporate buyers. The company launched Claude API early, giving businesses direct access before many competitors. Anthropic has also struck partnerships with major cloud providers like Amazon Web Services, making integration simpler for enterprises.

OpenAI still dominates in consumer adoption and cultural mindshare through ChatGPT. Its larger head start and name recognition in enterprise sales matter. But the Ramp data suggests that in the narrower category of businesses actively paying for AI services, Anthropic's product quality and positioning now edge out OpenAI's offerings.

The survey doesn't measure deployment scope or spending volume, only the percentage of businesses using each service. A company might use both Anthropic and OpenAI simultaneously, complicating the competitive picture. Still, Ramp's methodology provides a window into actual enterprise behavior rather than public claims or marketing narratives. For Anthropic, the data validates its strategy of building enterprise trust through technical excellence and responsible AI practices.