By Ashley Capoot
Publication Date: 2026-04-13 12:30:00
OpenAI’s newly appointed revenue chief, Denise Dresser, sent a memo to staffers on Sunday, touting the company’s alliance with Amazon as a key growth driver for its enterprise business, while noting the constraints of its longstanding tie-up with Microsoft.
Dresser’s memo lands less than two months after Amazon announced plans to invest up to $50 billion in OpenAI as part of a strategic partnership. Microsoft, Amazon’s top cloud computing rival, has invested more than $13 billion in OpenAI since 2019, backing the company long before it kicked off the generative AI boom with the launch of ChatGPT.
Amazon Web Services, the leader in cloud infrastructure, gives companies access to all of the major AI models, including those from OpenAI, through a platform called Bedrock.
“Our Microsoft partnership has been foundational to our success. But it has also limited our ability to meet enterprises where they are — for many that’s Bedrock,” Dresser wrote in the memo, which was viewed by…