Amazon Web Services CEO Matt Garman speaks at the HumanX conference in San Francisco on April 7, 2026.
Big Event Media | HumanX Conference | Getty Images
A day after OpenAI revamped its relationship with Microsoft so that it can run all of its products on any cloud, the artificial intelligence company said its models will be available via Amazon Web Services.
AWS customers can experiment with OpenAI’s models as well as its Codex agent for writing code, all through Amazon Bedrock, the companies announced on Tuesday. The services will become generally available in the next few weeks.
“This is what our customers have been asking us for for a really long time,” AWS CEO Matt Garman said at a launch event in San Francisco.
Until now, developers could draw on so-called open-weight models from OpenAI that came to AWS in August.
OpenAI CEO Sam Altman sent a recorded message about the announcement, as he’s currently in court across the Bay Bridge in Oakland for his case against Elon Musk.
“I wish I could be there with you in person today, my schedule got taken away from me today,” Altman said in the video. “I wanted to send a short message, though, because we’re really excited about our partnership with AWS and what it means for our customers, and I wanted to say thank you to Matt and the whole AWS team.”
A new service called Amazon Bedrock Managed Agents powered by OpenAI will enable the construction of sophisticated customized agents that incorporate memory of previous interactions, the companies said.
Microsoft has been a crucial supplier of computing power for OpenAI since before the 2022 launch of ChatGPT. Denise Dresser, OpenAI’s revenue chief, told employees in a memo earlier this month that the longstanding Microsoft relationship has been critical but “has also limited our ability to meet enterprises where they are — for many that’s Bedrock.”
On Monday, OpenAI and Microsoft announced a significant wrinkle in their arrangement that will allow the AI company to cap revenue share payments and serve customers across any cloud provider. Amazon CEO Andy Jassy called the announcement “very interesting” in a post on X, adding that more details would be shared on Tuesday.
OpenAI and Amazon have been getting closer in other ways.
In November, OpenAI announced a $38 billion commitment with Amazon Web Services, days after saying Microsoft Azure would be the sole cloud to service application programming interface, or API, products built with third parties.
Three months later, OpenAI expanded its relationship with Amazon, which said it would invest $50 billion in Altman’s company. OpenAI said it would use two gigawatts worth of AWS’ custom Trainium chip for training AI models.
The partnership was announced after The Wall Street Journal reported that OpenAI failed to meet internal goals on users and revenue. Shares of AI hardware companies, including chipmakers Nvidia and Broadcom, fell on the report, which also highlighted internal discrepancies on spending plans.
“This is ridiculous,” Sam Altman and OpenAI CFO Sarah Friar said in a statement about the story. “We are totally aligned on buying as much compute as we can and working hard on it together every day.”
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