OpenAI is reportedly gaining ground on Anthropic among US business users, according to new data from corporate credit card and expense management company Ramp. While Anthropic held a lead with nearly 44% market share among Ramp's paying business users in July, compared to OpenAI's nearly 40%, OpenAI is currently growing faster in Q3 to date within this segment.
OpenAI had previously lost its lead among Ramp's business users in May, when Anthropic reached 41% market share to OpenAI's 39%. Ramp economist Ara Kharazian noted that OpenAI's "GPT-5.6 Sol is really good, increasingly the choice for developers," while Anthropic's Fable 5 reportedly "disappointed both in adoption and real-world application given price + data retention requirements imposed by regulators."
The data from Ramp covers over 70,000 American businesses, though it excludes large enterprises using other spend-management tools. The overall market for AI services among these Ramp customers is expanding, with the percentage of companies paying for AI steadily climbing to nearly 56% by July, up from 50% in March.