- Microsoft lost its exclusivity as a cloud partner yesterday; today, AWS gets a major OpenAI update
- GPT-5.5 and other models including Codex will be available to Amazon Bedrock customers
- Available in limited preview for now, this is just the “beginning of a deeper collaboration.”
A day after OpenAI revealed that Microsoft would no longer be its exclusive cloud partner (but would remain a priority partner), the ChatGPT maker announced a new agreement with Amazon Web Services (AWS).
As part of the agreement, GPT and other related models will be available on AWS through Amazon Bedrock for the first time, and the Codex agent will also be able to integrate into AWS environments.
This expansion comes weeks after Amazon announced a “multi-year strategic partnership” with OpenAI, investing $50 billion in the company.
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OpenAI and AWS deepen partnership
Under that agreement, OpenAI would consume 2 GW of Trainium capacity across AWS infrastructure, and the two companies would together develop custom models to power Amazon’s customer-facing applications. This eight-year agreement was itself an extension of a previous agreement, worth a combined $138 billion.
The latest development places OpenAI models directly into Bedrock alongside alternatives from Anthropic, Meta, Mistral, Cohere, Amazon and “other leading vendors.” Includes OpenAI’s “best frontier model”, GPT‑5.5.
By placing OpenAI models directly into Bedrock, it means customers still have access to AWS enterprise features such as IAM access controls, private networking, encryption, firewalls, and AWS CloudTrail logs.
Amazon is especially pleased to integrate Codex, highlighting its four million weekly users, highlighting its availability with the Codex CLI, the Codex desktop app, and the Visual Studio Code extension.
Codex on Bedrock, as well as the availability of OpenAI models and OpenAI-powered Amazon Bedrock managed agents, are available in limited preview for now.
AWS described the latest news as just the “beginning of a deeper collaboration,” and with Microsoft exclusivity off the table, it could be the start of many more for OpenAI as well.
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