OpenAI narrows gap with Anthropic among Ramp’s business customers

OpenAI is closing the enterprise AI gap with Anthropic among Ramp's business customers, posting a quarter-over-quarter growth rate of 82 compared to Anthropic's 76 as of mid-August 2026, according to Ramp's AI Index. While Anthropic's adoption reached 43.5% in July 2026 versus OpenAI's 39.7%, OpenAI's GPT-5.6 Sol accounted for 25% of tokens and 23% of corporate spend, compared to Anthropic's Fable 5 at 6% of tokens and 11.4% of spend.

Via cnet.com OpenAI narrows gap with Anthropic among Ramp’s business customers Transaction data from Ramp's AI Index shows OpenAI clawing back enterprise market share after Anthropic's dramatic surge earlier this year For most of the past year, the story in enterprise AI has been Anthropic’s meteoric rise. The company quadrupled its share of US business adoption from roughly 9% to over 34% in about twelve months, eventually overtaking OpenAI among Ramp’s tracked corporate customers. But the latest data suggests OpenAI isn’t content playing second fiddle. As of mid-August 2026, OpenAI has begun closing the gap with Anthropic in quarter-over-quarter enterprise growth, posting a QoQ growth rate of 82 compared to Anthropic’s 76. The numbers come from Ramp’s AI Index, which tracks actual payment transactions across its corporate card network rather than relying on surveys or self-reported data. The numbers behind the shift Rewind to April 2026, and Anthropic hit a milestone that would have seemed absurd a year earlier. Its products were being used by 34.4% of Ramp’s US business customers, edging past OpenAI’s 32.3%. For context, Anthropic sat at just 9% adoption in May 2025. By July 2026, Anthropic had extended its lead further. Adoption climbed to 43.5% among tracked businesses, while OpenAI held 39.7%. Anthropic’s strength was concentrated in high-adoption verticals like finance and technology. But the token-level data tells a more nuanced story. OpenAI’s GPT-5.6 Sol accounted for 25% of tokens and 23% of corporate spend in July. Anthropic’s competing model, Fable 5, represented just 6% of tokens and 11.4% of spend. In other words, Anthropic has more companies signing up, but OpenAI’s newest model is consuming a disproportionate share of actual usage and dollars. Adoption rate counts how many companies use a product. Token share and spend reveal how deeply those companies are integrating it into their workflows. OpenAI appears to be winning the intensity game even while trailing on breadth. Why Ramp’s data matters Launched in 2025, Ramp’s AI Index employs anonymized payment data from corporate cards and accounts-payable records to gauge business engagement with AI service providers. The index focuses on subscription and token purchases rather than self-reported surveys or trial metrics. Ramp’s customer base skews toward startups and mid-market companies, so the data isn’t a perfect proxy for the entire enterprise market. Large enterprises with custom contracts and direct billing relationships might not show up cleanly. What’s driving the OpenAI comeback GPT-5.6 Sol has been gaining traction since its release, and its token consumption numbers suggest businesses that try it are using it heavily. When a model captures 25% of tokens but the company behind it has less than 40% adoption, it means existing users are going deep. On the Anthropic side, there are hints that regulatory hurdles around Fable 5’s pricing may have slowed its growth trajectory. Ramp’s analysts noted that OpenAI’s more robust growth rate became apparent starting in mid-August 2026. The broader implication is that enterprise AI spending is becoming more fluid, with decreasing switching costs leading businesses to reallocate budgets as new models prove their worth. Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy https://cryptobriefing.com/editorial-policy/ .