Amazon, Google, Microsoft and Meta are pouring billions into artificial intelligence, undeterred by DeepSeek’s rise.

Wall Street’s expectations on fourth-quarter earnings and revenue today, but sales in its all-important cloud computing business came up short, and guidance for the current quarter was light. As a result,

Amazon investors drove shares down sharply on Thursday due to weakness in the retailer’s cloud computing unit and lower-than-expected forecasts for first-quarter revenue and profit. Amazon’s shares fell as much as 5% in extended trade after the fourth-quarter earnings report,

Amazon said Thursday it plans to boost its capital expenditures to $100 billion in 2025, as it continues its spending spree on AI services.