Amazon plans to invest about $100 billion in artificial intelligence initiatives this year, surpassing Microsoft and Alphabet, according to Benzinga. CEO Andy Jassy announced the move during the company's fourth-quarter earnings call, noting that $26.3 billion was already spent in the fourth quarter of 2024 across all business areas. Most of the 2025 investment will go to Amazon Web Services, which operates data centers and cloud tools. Amazon reported $187.8 billion in Q4 revenue, up 10% year-over-year, slightly beating forecasts. The company expects lower sales next quarter. Shares dropped 4.05% after hours to $229.16 after rising 1.13% during the day.