Anthropic overtakes OpenAI in B2B adoption for the first time according to Ramp spending data

Ramp billing data shows Anthropic now leads paid B2B AI adoption at 34.4% of companies, ahead of OpenAI’s 32.3%.

This is the first time Anthropic has topped the Ramp AI Index, signaling growing enterprise preference for Claude and related tools.

The lead is based on paying customers on Ramp, not direct usage, so it may not reflect total market activity.

Analysts warn the gap could shift quickly as model prices, outages, and cheaper alternatives continue to reshape enterprise demand.