PwC has deployed Claude across more than 300,000 professionals globally — the largest professional-services AI rollout publicly disclosed. Internal numbers reported on the launch: insurance underwriting compressed from ten weeks to ten days, security tasks from hours to minutes, and overall delivery up to 70% faster. PwC has also stood up a new finance unit, the "Office of the CFO," built entirely on Claude. The deployment lands as the firm renegotiates partner-level utilisation targets to reflect agent-assisted output.