Anthropic takes 73% of new enterprise AI spend, up from 50% ten weeks ago
## The Numbers Anthropic now takes 73% of new enterprise AI spending, according to Ramp transaction data. Ten weeks ago, the split was 50-50 with OpenAI. That is the leading indicator that matters. Overall, Anthropic holds 32-40% of enterprise LLM market share, up from 12% in 2023. OpenAI sits at 25-27%. In coding specifically, Anthropic's share hits 42-54%. Total enterprise genAI spend is projected at $37B in 2025, with average firm spending climbing from $7M this year to $11.6M in 2026. ## Why This Matters for Sales Teams The shift is driven by workflow lock-in, not just product quality. Claude Sonnet and Opus models have become the default for coding and data analysis. Once a company spends weeks building AI workflows, dialing in outputs, and training on their context, they do not switch. The soft costs are enormous even when token pricing looks attractive elsewhere. For sales teams evaluating AI tools, this is the relevant question: are you building on the platform that enterprises are locking into? If your stack depends on OpenAI integrations and enterprise buyers are standardising on Claude, that is a planning problem. OpenAI still owns consumer mindshare. ChatGPT has the muscle memory. But the enterprise coding market, which drives the bulk of AI spend, is locking in now. Anthropic's consistency, contrasted with OpenAI's direction changes (headcount flat then double, agentic commerce then deprioritised, hardware then not), has created a smell that enterprise buyers notice. ## The Broader Context Anthropic, founded in 2021 by former OpenAI executives, raised over $8B including a $4B round from Amazon. The company is valued at $18.4B. API data shows 77% of usage is automation-focused. Ramp's customer base skews toward digital companies making these decisions first. Their data scientists are credible. The sample is not a lemonade stand. For sales orgs building AI into prospecting, lead gen, or account management workflows, the marginal buyer trend is the signal. Where enterprise spend is moving tells you where support, integrations, and ecosystem development will follow. Right now, that is Claude.