Amazon said Tuesday that it will lay off about 14,000 corporate employees, marking the latest cuts in the company’s multi-year effort to rein in costs.

In a blog post, the company wrote that the layoffs are being carried out to help make the company leaner and less bureaucratic, while it looks to invest in “our biggest bets” including generative artificial intelligence.

“This generation of AI is the most transformative technology we’ve seen since the Internet, and it’s enabling companies to innovate much faster than ever before (in existing market segments and altogether new ones),” Beth Galetti, senior vice president of people experience and technology at Amazon, wrote. “We’re convinced that we need to be organized more leanly, with fewer layers and more ownership, to move as quickly as possible for our customers and businesses.”

The layoffs are expected to ultimately be the largest corporate job cuts in Amazon’s history, CNBC previously reported. Reuters reported the cuts could affect as many as 30,000 employees, citing sources familiar with the matter.