Anthropic Leads US Business AI Spend as Fable 5 Lags Behind
Anthropic now accounts for 43.5% of U.S. firms’ paid AI spend, nudging OpenAI to 39.7% and outpacing its own Fable 5 rollout. The latest Ramp AI Index shows slower adoption of Anthropic’s new model and growing interest in cheaper open‑source alternatives, signalling a shift in corporate AI buying patterns.