In Q4'25, GOOG's operating cash flow reached $52.4B, marking a robust increase from the previous quarter and representing the highest point in the observed period. Free cash flow for the same quarter stood at $24.55B, reflecting strong liquidity generation despite ongoing capital expenditures. From Q1'23 to Q4'25, operating cash flow exhibited an overall upward trend, starting at $23.51B and climbing steadily with notable peaks in Q3'25 ($48.41B) and Q4'25, though it dipped to $18.92B in Q4'23 amid seasonal factors. Free cash flow followed a similar volatile but generally positive trajectory, fluctuating between $5.3B in Q2'25 and $24.84B in Q4'24, underscoring improving efficiency in cash conversion over the 12-quarter span.