Anthropic closes $30B Series G at $380B post-money — second-largest private VC deal in history

Anthropic reportedly raised $30 billion at a $380B post-money valuation in Series G — the second-largest private venture deal on record. The company is reporting $14B annualized revenue and is on track for the fastest revenue ramp from zero of any enterprise software company in history. The capital underwrites the disclose-hold-evaluate-ship posture on Mythos and the next compute build.

$30B is the kind of round that resets the strategic-options table. It funds two things at once: the multi-year compute commitments that the next-generation Claude family needs, and the runway to keep holding Mythos in preview until the red-team and CAISI evaluation cycle closes. Both are expensive postures that only labs with a fully capitalized balance sheet can sustain.

The valuation itself signals where private markets think the frontier sits. $380B post-money is roughly 27× ARR — premium relative to a SaaS multiple, modest relative to where OpenAI's last round priced. The implication is that investors are buying the moat (responsible-scaling posture + Mythos-class capability lead) at a multiple that requires Anthropic to keep extending the gap, not just defend it.

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