Amazon.com said profit tripled to nearly $10 billion from July to September as strong sales in its cloud-computing, advertising and retail units helped the company continue its rebound from postpandemic lows.

Chief Executive Andy Jassy said the company would reap tens of billions of dollars in revenue in the next several years as customers turn to generative AI opportunities available within its cloud-computing business, known as Amazon Web Services, or AWS. Business customers are likely to be less cautious with their spending, he said.