April 29 (Reuters) - Amazon.com topped Wall Street estimates for quarterly cloud revenue growth on Wednesday, driven by strong enterprise spending on its cloud computing services as companies step up artificial intelligence adoption.
Revenue at Amazon Web Services (AWS) jumped 28% to $37.6 billion in the first quarter ended March, compared with analysts' average estimate of a 25.08% increase to $36.61 billion, according to data compiled by LSEG.
The upbeat revenue comes when Amazon - the world's largest
cloud services provider - has already boosted investor confidence by deepening its partnership with the two biggest AI firms, OpenAI and Anthropic, within days of each other.
On Tuesday, Amazon made available all of OpenAI's latest models and its coding agent, Codex, on AWS, taking advantage of loosened ties between the ChatGPT maker and cloud rival Microsoft.
Last week, Amazon stuck a deal to invest up to $25 billion in Anthropic, while the Claude creator committed to spending more than $100 billion on AWS in the next 10 years.
The announcements, coupled with a disclosure earlier this month that AI services at AWS were generating more than $15 billion in annualized revenue, have helped push Amazon's stock up some 14% so far this year, putting it among the best performers in the "Magnificent 7" group of tech mega-caps.
Amazon, which has set a target of around $200 billion in capital spending this year, has been going all out to reassure investors that its spending on AI infrastructure will generate returns in the near term.
CEO Andy Jassy said in his shareholder letter this month that much of the company's 2026 spending will be monetized over 2027 and 2028.
Still, the roughly $600 billion that Big Tech is expected to pour into AI this year - a historic outlay that has dented cash flows at these companies - is testing investors' patience, even as companies say that it is necessary to increase computing capacity as strong AI demand outstrips supply.
At its retail business, Amazon has been investing in expanding same-day delivery to more towns and small cities, and has sharpened focus on grocery delivery in a bid to better compete with supermarket chains such as Walmart and Kroger.
(Reporting by Deborah Sophia in Bengaluru; Editing by Sriraj Kalluvila)
