Amazon expects $100 billion of capex in 2025 on 'once-in-a-lifetime' AI opportunity

1. Amazon plans to increase capital expenditures to $100 billion by 2025. 2. Investment focuses on AI infrastructure to meet growing demand for generative AI. 3. CEO Jassy emphasizes long-term benefits from increased spending on AI. 4. Mixed Q4 results and lower sales projections caused a 4% drop in shares. 5. Other tech giants like Google and Microsoft are also ramping up AI investments.