OpenAI brings models, Codex, and agents to AWS for enterprise users

OpenAI pushed its core products deeper into Amazon’s cloud stack on April 28, giving enterprise buyers a new way to adopt AI without rebuilding the controls they already use. The limited preview brings OpenAI models, Codex on AWS and Amazon Bedrock Managed Agents powered by OpenAI into Amazon Bedrock, which means companies running on AWS can keep procurement, identity, compliance and security inside familiar workflows while testing more capable AI tools.

The move matters because it shifts AI from isolated chat use into everyday enterprise work. OpenAI said more than 4 million people now use Codex every week, up from more than 3 million weekly developers earlier in April, and described use cases that reach from writing code and explaining systems to refactoring applications, generating tests and modernizing legacy codebases. It also pointed to broader professional tasks such as creating briefs, slide decks and spreadsheets, a sign that the tools are moving into the document-heavy work many office teams already do.

For workplace teams at NlckySolutions, the biggest change is not just access to a new model. It is the lower friction of adopting AI inside the environment the company already governs. If an engineering group, operations team or business unit already runs on AWS, leaders can pilot or standardize OpenAI tools through Bedrock rather than standing up a separate vendor process. That makes the real questions less about which chatbot is newest and more about who can design the best workflow, access controls and review process around it.

AWS said the new OpenAI frontier models available in preview on Bedrock include GPT-5.5 and GPT-5.4, and said Bedrock is already used by more than 100,000 organizations worldwide. OpenAI also said enterprise is growing rapidly and now makes up more than 40% of revenue, underscoring how quickly workplace demand is shaping product strategy. The company has already cited enterprise use across the software development lifecycle, including Virgin Atlantic using Codex to increase test coverage and team velocity, Ramp using it to speed code review and Notion using it to build features more quickly.

The timing followed a revised Microsoft and OpenAI partnership announced on April 27 that loosened OpenAI’s cloud exclusivity and let it serve products across any cloud provider. That set the stage for AWS to move quickly. For employers, the signal is clear: AI adoption is becoming less about a standalone experiment and more about embedding agents into the systems companies already trust, budget for and audit.