Anthropic Was Behind. Now It’s the AI Boom’s Front-Runner. - WSJ

Created 5/13/2026 at 4:46:51 PM

In data released Wednesday, finance startup Ramp said more of its customers used Anthropic’s models than OpenAI’s for the first time, with 34.4% using Anthropic versus 32.3% using OpenAI. Adoption of Anthropic’s Claude tools jumped 3.8% from March to April, while OpenAI adoption fell 2.9%, according to the data. Ramp analyzes the spend of approximately 50,000 customers to track AI adoption trends.

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