Anthropic Claude Grabs 70% of New Enterprise AI Customers — $14B Revenue Run-Rate (2026)
▲ Anthropic Claude flips enterprise AI market — 70% new customer win rate Anthropic Claude is the AI model developed by Anthropic that, as of March 2026, captures approximately 70% of first-time enterprise AI purchases — surpassing OpenAI in new customer acquisition. According to Ramp's March 2026 AI Index and reporting by The Register on March 19, Anthropic's enterprise subscription share stands at 24.4% , rapidly closing the gap on OpenAI's 34.4% . Why Are Enterprises Choosing Claude Over ChatGPT? The shift didn't happen overnight. Just a year ago, only 1 in 25 businesses on the Ramp platform paid for Anthropic. Today that figure has grown to nearly 1 in 4 . Two key factors are driving the switch. First, Claude Code is outperforming OpenAI's Codex in real-world developer environments — making it the preferred choice for engineering-led companies where coding productivity directly impacts revenue. Second, Anthropic's public refusal to allow Claude to...