"Investing 'very heavily' in capital expenditure and infrastructure is going to be a strategic advantage over time," Mark Zuckerberg said.

Key tech stocks were a mixed bag in early trading Thursday after executives at Meta and Microsoft said they plan to keep pouring billions of dollars into AI – despite lingering anxiety over the launch of China-based DeepSeek’s AI model.

Microsoft reported lower-than-expected revenue growth for its AI and cloud divisions as scrutiny grows over tech's AI investments.

Microsoft Corp. investors focused on the company’s disappointing revenue of its Azure cloud business on Wednesday, but they should also be looking at another number indicative of future growth: bookings.

Microsoft on Wednesday posted disappointing Azure cloud business growth and large artificial intelligence expenses, hitting its shares as a recent surge in low-cost Chinese AI technology threatens to undermine the case for such big spending.