Anthropic Tops OpenAI 34.4% to 32.3% in Business AI Adoption

3 articles · Updated · TechCrunch · May 13

34.4% of businesses in Ramp’s latest AI Index paid for Anthropic services, edging OpenAI at 32.3% and giving Anthropic the top spot for the first time.
50,000-plus companies underpin the expense-data survey, and Ramp said Anthropic had already led among heavy-adoption sectors such as finance, tech and professional services before widening its gains.
9% of businesses were paying for Anthropic products in May 2025; that share jumped 26 points over 12 months, while OpenAI’s slipped 1 point and overall AI business adoption rose 9 points.
OpenRouter data points in the same direction—OpenAI last ranked above Anthropic there in December 2025—though Ramp economist Ara Kharazian said Anthropic’s lead may not prove durable.

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