China's data output reaches 52.26 zettabytes in 2025

China's total data production reached 52.26 zettabytes (ZB) in 2025, up 27.28% year on year, according to the National Data Resources Survey Report (2025) released on Wednesday at the 9th Digital China Summit in Fuzhou, Fujian Province.

The figure is equivalent to nearly 30 times the total storage capacity of all computing centers nationwide. Globally, China's data output accounted for 27.44% of the world's total, the report said.

Jiang Mingtao, head of the China Center for Information Industry Development, said sectors growing by more than 10% are generally considered high-growth industries. He noted that China's total data production has accelerated for three consecutive years, with the strong 2025 growth mainly driven by enterprise data.

As smart manufacturing and the industrial internet continue to expand, data generated by industry, software and information technology services now account for nearly half of all industry data output, showing that digital transformation has effectively boosted data supply.

By sector, data production in embodied AI and the low-altitude economy surged 477.78% and 75% respectively in 2025.

The report also highlighted rapid growth in AI token usage. Tokens, the smallest units of information used by large AI models to process data efficiently, saw average daily calls rise from over 1 trillion at the start of the year to 100 trillion by year-end. Total token calls for the full year reached about 2,110 quadrillion.