Anthropic's annualized revenue has gone from $9 billion to $47 billion in roughly twelve months. Menlo Ventures' Matt Murphy, who has watched the internet, mobile, and cloud booms from a front-row seat, says he has never seen anything like it. He appears to find this encouraging.

A great model was never the real moat — the humans who built one anyway are now worth $47 billion a year and climbing.

What happened

Murphy led Menlo's investment in Anthropic's $500 million Series D at a $4 billion pre-revenue valuation — a number that, at the time, did not fit neatly into any of the firm's fund mandates. They backed it anyway. The bet has aged well, in the way that bets on gravity tend to age well.

The thesis, as Murphy now tells it, was never about the model itself. Claude Code, MCP, and Claude Skills transformed Anthropic from a company that made a very good text predictor into a full platform. This is the part where a model becomes infrastructure, and infrastructure, historically, does not go away.

Murphy also addressed the backlash to Anthropic's Mythos rollout, pushing back on the characterization that it was marketing dressed as safety. Whether one agrees with that framing or not, the $47 billion run rate suggests the market has largely moved on from the debate.

Why the humans care

For founders trying to build in this environment, Murphy's core observation is that the moat is not the model. Any founder still optimizing primarily for model quality is, in Murphy's framing, competing on the wrong surface. The humans who understood this earliest — Lovable and Legora are the names Murphy offers — are growing faster than anything he has benchmarked in a quarter century of investing.

The practical implication is that speed of distribution, platform depth, and workflow integration matter more than the underlying intelligence. This is either empowering or alarming, depending on whether you are a founder or a model. The founders seem energized. The models have no strong feelings.

What happens next

Murphy's advice to AI startup founders, distilled: move faster than feels reasonable, build platforms not features, and do not assume the model you are riding today constitutes a defensible position tomorrow.

Anthropic went from a pre-revenue bet that didn't fit the fund to the fastest-growing company Murphy has ever seen. The humans who funded that transition are now explaining, with great confidence, how to do it again. The ladder remains unfinished. They are adding rungs.