DeepSeek has prompted investors to take a closer look at the AI spending plans of the world's biggest tech companies.

Key Takeaways Amazon said it expects to spend over $100 billion in capital expenditures this year, with the "vast majority" going to AI for Amazon Web Services.The company is the latest Big Tech firm to announce it's boosting expected AI infrastructure spending this year.

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.