Amazon.com Inc. announced its plans to invest approximately $100 billion in artificial intelligence initiatives by 2025, outstripping competitors such as Microsoft and Alphabet. CEO Andy Jassy highlighted that Amazon's capital expenditures will largely target Amazon Web Services, the platform underpinning its AI infrastructure. Despite a 10% revenue rise to $187.8 billion in the fourth quarter, the company foresees a decrease in net sales for the current quarter. Amazon's stock declined by 4.05% in after-hours trading, reflecting a reaction to the mixed outcomes of its fourth-quarter earnings report.