OpenAI Begins to Close Gap with Anthropic Among U.S. Businesses
As both OpenAI and Anthropic prepare for their anticipated IPOs, new insights from Ramp, a corporate credit card and expense management company, reveal that OpenAI is starting to catch up with Anthropic in terms of market share among U.S. businesses. Despite having lost the lead earlier this year, OpenAI is currently experiencing a growth trend.
In May 2023, OpenAI lost its dominance among Ramp’s paying business users, with Anthropic capturing a 41% market share compared to OpenAI’s 39%. As of July, Anthropic has maintained a market share of nearly 44%, while OpenAI holds close to 40%.
The data extracted from over 70,000 American businesses using Ramp’s financial services suggests that OpenAI’s growth among this segment has accelerated in the third quarter of 2023. According to Ramp economist Ara Kharazian, OpenAI has been growing at a faster pace than Anthropic, although he cautioned that the remaining month of the quarter could influence these trends significantly. Ramp has refrained from providing specific dollar amounts, opting to share only market share percentages.
It is important to note that this data does not reflect the total market, as it does not include large enterprises that utilize spending-management solutions from companies like American Express. Nevertheless, it indicates that Anthropic’s lead is not insurmountable, as businesses seem willing to pivot between offerings based on new developments from either company. Kharazian highlighted the competitive landscape, noting, “GPT-5.6 Sol is really good, increasingly the choice for developers,” while commenting on Anthropic’s Fable 5 model, which he noted has been disappointing in terms of adoption due to its pricing and data retention policies imposed by regulators.
While Kharazian acknowledged the limitations of Fable as tailored for specific use cases, he pointed out that its high cost could deter broader adoption. This follows some backlash Anthropic faced when it announced that it would retain user data for 30 days.
Despite the competition, Ramp’s data indicates an overall expansion in the market for artificial intelligence services. The percentage of companies paying for AI solutions among Ramp users has grown considerably, climbing from over 50% in March to nearly 56% by July.


