Anthropic Overtakes OpenAI in Paid Business Adoption, Led by Finance and Tech Customers

New updates have been reported about Anthropic.

Anthropic has surpassed OpenAI in verified business adoption among Ramp’s corporate clients, signaling a meaningful shift in the paid enterprise AI market. Ramp’s latest AI Index shows 34.4% of surveyed businesses now pay for Anthropic services versus 32.3% for OpenAI, marking the first time Anthropic has taken the top slot and underscoring its growing traction with revenue-generating customers.

The data, drawn from expense records of more than 50,000 Ramp client companies, is not a full market proxy but is broad and diverse enough to be indicative of a real trend. Ramp’s economist noted that Anthropic already leads among high-intensity users in finance, technology, and professional services, and that OpenAI’s edge in other sectors has narrowed over recent months.

The past year has been particularly significant for Anthropic’s commercial position, with its paying business penetration rising from roughly 9% in May 2025 to 34.4% this month, a gain of 26 percentage points. Over the same period, OpenAI’s share slipped by 1 percentage point, while overall enterprise AI adoption increased by 9 percentage points, implying Anthropic is capturing both new demand and share from competitors.

This momentum is corroborated by usage patterns on OpenRouter’s leaderboard, where OpenAI last ranked above Anthropic in December 2025, suggesting Anthropic’s rise is not limited to Ramp’s client base. For executives, the implication is that Anthropic is emerging as a preferred vendor among sophisticated, high-value users, which could translate into durable enterprise revenue and stronger pricing power if the trend continues.

Ramp’s economist cautioned that it is unclear how long this advantage will persist, noting in a blog post that competitive dynamics remain fluid and that OpenAI still holds strengths in other segments. However, he characterized Anthropic’s progress as validation of its go-to-market strategy: starting with a technically demanding customer base, deeply optimizing for their needs, executing well on product quality, and then expanding more broadly through tools like its Cowork offering.

For Anthropic stakeholders, the data points to a successful transition from a research-centric AI lab to a commercially scaled enterprise supplier, with particular depth in regulated and knowledge-intensive verticals. If Anthropic can sustain its lead in finance, technology, and professional services while broadening adoption in lagging industries, it could consolidate a premium position in the enterprise AI stack and strengthen its negotiating leverage with partners, channels, and capital providers over the next planning cycle.