OpenAI models land on AWS Bedrock

Amazon Web Services and OpenAI moved their partnership from preview to general availability on June 1, putting GPT-5.5, GPT-5.4 and Codex on Amazon Bedrock for U.S. customers. AWS said the models can now be used in production workloads through Bedrock, while OpenAI said the setup lets customers buy and run its models inside AWS environments they already use. (aws.amazon.com) Pricing matches OpenAI’s first-party rates, according to both companies. AWS and OpenAI also said the launch is available in commercial and government AWS regions in the United States. (aboutamazon.com) The release gives enterprises a new route to consume OpenAI models without shifting billing, security review or procurement outside AWS. (aws.amazon.com) Amazon said usage counts toward existing AWS commitments, and OpenAI said customers can use AWS-native controls and workflows. Bedrock’s OpenAI pages describe access through the Responses API, while Codex is available through its app, command-line interface and IDE integrations with inference routed through Bedrock. ### Which OpenAI products actually showed up on Bedrock? AWS named three products in the June 1 launch: GPT-5.5, GPT-5.4 and Codex. AWS described GPT-5.5 as OpenAI’s most capable model for agentic coding, data analysis and multi-step autonomous tasks, and positioned GPT-5.4 as a lower-cost option for coding, reasoning and professional workloads. (aws.amazon.com) OpenAI described Codex on AWS as its software engineering agent for writing, reviewing, debugging and modernizing code. The company said Codex is used by more than 5 million people every week, though it did not break out how many of those users are enterprise customers on AWS. (aboutamazon.com) ### Why does Bedrock matter if companies could already buy from OpenAI directly? Amazon framed the launch around existing enterprise controls. AWS said customers can use the same security, governance and operational controls they already use across AWS, and Amazon’s launch materials said spending on these models counts toward AWS commitments. (aws.amazon.com) OpenAI made the same point from the other side. Its AWS announcement said enterprises can build with OpenAI capabilities “within the systems, security protocols, compliance requirements, and workflows they already use,” rather than through a separate buying motion. ### How are the models accessed inside AWS? (openai.com) AWS said GPT-5.5 and GPT-5.4 run on Bedrock’s next-generation inference engine and can be called through the OpenAI Responses API on Amazon Bedrock. OpenAI’s developer documentation shows model calls using Bedrock-specific credentials and supported AWS region combinations. Codex arrives through a different surface. (aws.amazon.com) Amazon said Codex is available through the Codex app, CLI and IDE integrations, with all inference routed through Bedrock. Amazon also said those requests inherit AWS protections including Identity and Access Management, virtual private cloud isolation and encryption. (openai.com) ### Is this a global rollout or a U.S.-only one for now? AWS launch materials point to a narrower first footprint. Amazon said the models are generally available on Bedrock and its OpenAI model pages refer users to supported model-and-region combinations, while OpenAI and Amazon both tied the announcement to commercial and government AWS regions. The initial availability described in launch coverage is limited to the United States. (aws.amazon.com) For customers with data-residency requirements, AWS said processing stays within the Bedrock region selected by the customer. That claim applies to supported Bedrock regions rather than a global OpenAI rollout. (aboutamazon.com) ### What changes for procurement and spending controls? Amazon’s June 1 post said there are no additional AWS fees on top of OpenAI’s rates. The company also said Bedrock usage counts toward AWS commitments, which can matter for enterprises that already negotiate cloud spend through master contracts. Codex is billed by token on Bedrock, AWS said, with no seat licenses or per-developer commitments. (aws.amazon.com) That puts software-development usage into the same cloud billing structure as other Bedrock workloads rather than a separate developer-seat purchase. ### What comes next in this AWS-OpenAI tie-up? (aws.amazon.com) April 28 was the date OpenAI and AWS first announced an expanded partnership bringing OpenAI models, Codex and Managed Agents to AWS in limited preview. June 1 moved GPT-5.5, GPT-5.4 and Codex to general availability on Amazon Bedrock, while OpenAI’s AWS access page continues to advertise models, Codex and Bedrock Managed Agents on the platform. (aboutamazon.com) AWS’s Bedrock product page now lists OpenAI GPT-5.5 and GPT-5.4 as generally available, and the next concrete step for customers is through the Bedrock console, OpenAI’s Bedrock developer guide and the Codex tools AWS named in the launch. (aws.amazon.com) (openai.com) (aws.amazon.com)