Tech executives bet big on AI. Their workers are being tasked with proving they were right.

Getty Images; Alyssa Powell/BI

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First came efficiency. Then came intensity. Now it's accountability.

A new year means a new mantra for Silicon Valley, and this time it's all about showing your work, writes BI's Tim Paradis.

From Amazon helping managers track employees' time spent in the office to Meta keeping tabs on workers' AI usage...