Anthropic annualized revenue hits $81B as of Oct 31, up $10B from September

The pace of Anthropic's annualized revenue growth — adding $10 billion in a single month — is the most telling figure here, since it suggests enterprise AI spending is still accelerating rather than plateauing. The jump in large customers to 11,900 points to deepening commitment from big-budget buyers, which matters for anyone tracking where AI infrastructure demand and compute contracts head next. The stated $1 trillion IPO valuation target on Nasdaq is the open question: whether public markets will underwrite that number against a revenue base that, while growing fast, is still annualized rather than audited.