Business AI Adoption Flips: Anthropic Overtakes OpenAI

by Zaira Varghese 13. June 2026 AI 0

Business AI adoption just crossed a line no one expected to see this soon: more US companies are now paying for Anthropic’s Claude than for OpenAI’s ChatGPT. The shift, revealed in the latest Ramp AI Index, marks the first time since the generative-AI race began that the challenger has edged ahead of the incumbent on a paid-usage basis.

What the Business AI Adoption Numbers Show

According to data from Ramp, the corporate-card and finance-automation platform that tracks spending across more than 50,000 US businesses, Anthropic’s adoption rose 3.8 percentage points in April to 34.4% of tracked companies, while OpenAI slipped 2.9 points to 32.3%. Overall AI adoption among those businesses climbed to 50.6%. As VentureBeat reported on the Ramp release, this is the first month in which Claude out-earned ChatGPT inside American companies.

The trajectory is what makes the crossover striking. Anthropic’s business footprint grew from a rounding error in mid-2023 to roughly 8% by spring 2025, and then to more than 34% a year later. OpenAI, by contrast, peaked near 36.5% in mid-2025 and has been drifting lower ever since.

Why Claude Is Winning Enterprises

The engine behind the surge is Claude Code, now the fastest-growing product in Anthropic’s history. One analysis cited by Ramp estimated that around 4% of all public GitHub commits worldwide were being authored with Claude Code at the most recent measurement, double the share from just a month earlier. Bottom-up developer love, it turns out, scales into company-wide contracts.

Developer-first traction: engineering teams adopt Claude Code, then expand it across the organization.
Frontier model quality: Claude Opus 4.8 topped independent intelligence rankings in late May 2026.
Massive compute backing: Anthropic signed a deal with Amazon for up to 5 gigawatts of training and inference capacity.

The Catch Behind the Business AI Adoption Lead

Not every signal points the same way. A separate IDC survey of more than 1,000 organizations found only 19% reported “extensive” use of Claude, still trailing OpenAI and Google on depth of usage. The two studies measure different things: Ramp tracks which vendor a company actually pays for, while IDC measures how deeply a tool is woven into daily work. Read together, Anthropic is winning new business AI adoption even as rivals retain an edge among earlier adopters.

There are risks, too. VentureBeat flagged escalating compute costs, capacity limits, and the usage-based pricing that fueled growth as threats that could erase the lead. A switch to consumption billing earlier this year reportedly doubled or tripled costs for some heavy users, the kind of friction that can push price-sensitive teams back toward cheaper options.

Why It Matters Ahead of the IPO Wave

The timing is loaded. Anthropic is reportedly targeting a public listing as soon as Q4 2026, with bankers expecting a raise north of $60 billion, while OpenAI is also preparing a confidential filing. A clear lead in business AI adoption is exactly the kind of momentum metric S-1 readers and institutional investors scrutinize when pricing a debut. After SpaceX’s orderly market debut validated premium AI-infrastructure valuations, the adoption crossover gives Anthropic a fresh data point to carry into investor meetings.

The Bottom Line

One month does not make a permanent order, and OpenAI still commands enormous mindshare and consumer reach. But the symbolism is hard to ignore: the company once viewed as the polite safety-focused alternative is now the one more American businesses are choosing to pay for. Whether Anthropic can defend that lead through pricing pressure and the looming IPO crunch is the question that will define the next two quarters of the AI race.