Anthropic is the fastest-growing AI company in the world, and its revenue trajectory is arguably the single most important private-company signal for the entire AI infrastructure trade. But between sporadic media leaks, the market is flying blind.
Today FUNDA is launching Anthropic ARR Nowcast — a Play that maintains a running, independent estimate of Anthropic's annualized revenue derived entirely from public adoption signals.
Monthly ARR Estimates
The Play outputs a continuously updated ARR estimate using publicly observable data — not insider sources, not media speculation, not sell-side guesses. Each estimate comes with calibrated confidence intervals that widen when the model is less certain, giving investors both a point estimate and an honest range of uncertainty.
Model Track Record
A chart overlays past model estimates against subsequently reported revenue numbers. Where confirmed figures fall within the model's confidence bands, investors can see the estimation process tracked reality. This built-in track record lets users judge reliability without taking the model on faith.
Ask Conversational Questions
The Play is conversational. Ask it what is driving the current estimate, how Anthropic's growth trajectory compares to the last reported figure, what the estimate implies for cloud capex or GPU demand, or how confidence has shifted over time. The chat panel on the right side supports interactive research — ask anything to begin.
Anthropic ARR Nowcast is now live on FUNDA for all paid Substack subscribers.
Data sources
NPM and PyPI package downloads, and confirmed ARR figures from public reporting (Reuters, CNBC, The Information, Sacra, and Anthropic) — combined with our own research.
Public confirmed figure sources: Dec 24, Mar 25, May 25, Jul 25, Oct 25