Anthropic Pulls Ahead in the Enterprise AI Race
For the first time, Anthropic has overtaken OpenAI as the top AI lab by business customer count — at least among companies tracked by fintech expense platform Ramp. The data shows that 34.4% of Ramp's participating business clients are paying for Anthropic's services, compared to 32.3% for OpenAI.
It's a subtle but symbolically significant shift. OpenAI has long been synonymous with the generative AI boom, largely off the back of ChatGPT's viral 2022 launch and its deep integration into Microsoft's enterprise stack. Anthropic, founded by former OpenAI researchers including CEO Dario Amodei, has taken a quieter but increasingly aggressive approach to the business market.
What's Driving Anthropic's Rise?
Anthropics's Claude family of models — particularly Claude 3.5 Sonnet and the newer Claude 3.7 variants — have earned strong reviews from developers and enterprise teams for their reliability, long-context handling, and safety-oriented design.
The company has also secured major cloud distribution deals with both Amazon Web Services (via Amazon Bedrock) and Google Cloud, giving enterprise buyers easy access to Claude without leaving their existing infrastructure. That distribution muscle appears to be paying off.
Meanwhile, OpenAI has faced a turbulent stretch: leadership drama, product delays, and a crowded model lineup that some customers have found confusing. The company remains dominant in consumer mindshare, but the enterprise procurement battle is clearly tightening.
The Limits of the Data
It's worth noting what the Ramp survey does — and doesn't — tell us. Ramp tracks expense data from its own client base, which skews toward startups and tech-forward small and mid-sized businesses. It isn't a representative sample of all enterprise AI spending globally.
Larger corporations with negotiated enterprise agreements — the kind that Microsoft locks in through its OpenAI partnership — may not be fully captured here. OpenAI also benefits from millions of individual ChatGPT Plus and API subscribers that fall outside Ramp's business expense view.
Still, for the segment of companies that are actively shopping for AI vendor relationships and running expenses through a modern fintech platform, Anthropic has quietly become the go-to choice.
A Two-Horse Race (For Now)
The broader AI industry picture shows a field that remains dominated by American labs, even as competitors from China (DeepSeek), France (Mistral), and elsewhere make inroads. Google's Gemini and Meta's Llama models are also seeing growing enterprise adoption, though neither yet appears to be threatening the top two positions in Ramp's data.
For businesses evaluating AI platforms right now, the practical takeaway is that the market has matured enough to support real vendor competition — meaning organizations have genuine choices and negotiating leverage they didn't have even 18 months ago.
Anthropics's rise from scrappy safety-focused startup to the most-used AI lab among business customers is a remarkable arc. Whether they can hold that position as OpenAI, Google, and others continue their own rapid development will be one of the defining tech stories of 2026.
Source: TechCrunch, May 13, 2026. Original data via Ramp fintech expense platform.
