Anthropic tools adoption jumped at US businesses?

Financial Times reported new month-over-month adoption figures from Ramp, a spend-management platform that tracks which AI tools U.S. businesses pay for. In March, 30.6% of U.S. businesses paid for Anthropic's tools, up from 24.4% in February. Over the same period, OpenAI's U.S. business adoption stayed nearly flat at about 35%.

Ramp's data points to an acceleration in business spending on Anthropic offerings rather than a dramatic decline in OpenAI usage. The share of companies paying for Anthropic-based tools rose by roughly 6 percentage points in a single month, while OpenAI remained the most widely paid-for option but did not show comparable growth in March.

This kind of spending-based metric is often seen by investors and operators as closer to "real procurement" than headline user counts. When a platform shows faster movement in paid adoption, it can suggest: - Broader enterprise workflows are being adopted (not just experimentation). - Budget reallocation may be occurring, with some organizations adding Anthropic tools alongside existing OpenAI use.

Ramp's snapshot doesn't reveal which specific Anthropic products are driving spend, how large the contracts are, or whether companies are switching providers or simply expanding their tool stacks.

Still, the direction of travel is notable: Anthropic's paid footprint appears to be expanding quickly, while OpenAI's remains steady at a higher baseline. In a crowded enterprise AI landscape, that mix -- fast growth by a challenger against a stable market leader -- can shape how vendors price offerings and compete for the next wave of enterprise deployments.