Anthropic-Only Enterprises Hit 23.1%, Passing OpenAI-Only at 19.2%

FinanceYF5 · x · 2026-10-27

Among enterprises committed to a single vendor, the shift is even starker: in Jan–Aug 2025, 60.6% bought only OpenAI and just 4.5% only Anthropic. A year later, Anthropic-only has climbed to 23.1%, surpassing OpenAI-only at 19.2% — a clear migration in enterprise procurement.

Related event: Ramp Data Shows Enterprise AI Spend Doubling as Anthropic Overtakes OpenAI(9 posts)→

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