Amazon pledges 2 GW of Trainium capacity to host OpenAI models on AWS Bedrock

Amazon said Wednesday it is bringing OpenAI’s latest models to Amazon Bedrock, alongside Codex on Bedrock and Amazon Bedrock Managed Agents in limited preview. (aboutamazon.com) Bedrock is Amazon Web Services’ marketplace for foundation models, letting companies call different models through one managed service instead of wiring each provider separately. AWS already lists OpenAI open-weight models in Bedrock documentation. (aws.amazon.com) (docs.aws.amazon.com) The new Bedrock push sits on top of a larger partnership Amazon and OpenAI announced on February 27, 2026. In that deal, AWS and OpenAI said they would build a “Stateful Runtime Environment” for Bedrock, so AI agents can keep context, memory, identity, and access to tools across longer jobs. (press.aboutamazon.com) That February agreement also gave the hardware scale behind the software launch. OpenAI committed to consume about 2 gigawatts of Trainium capacity on AWS for Frontier, the Stateful Runtime Environment, and other advanced workloads. (press.aboutamazon.com) (aboutamazon.com) Trainium is Amazon’s in-house artificial intelligence chip family, built to train and run large models more cheaply than renting comparable graphics processing unit clusters. AWS says Trainium2 delivers up to 4 times the performance of first-generation Trainium and 30% to 40% better price performance than GPU-based EC2 P5e and P5en instances. (aws.amazon.com) Amazon and OpenAI also expanded an earlier cloud contract by $100 billion over eight years, on top of an existing $38 billion agreement. Amazon separately said it would invest $50 billion in OpenAI, starting with $15 billion up front and another $35 billion later if conditions are met. (press.aboutamazon.com) (cnbc.com) The arrangement changes how OpenAI reaches enterprise customers. AWS is set to become the exclusive third-party cloud distribution provider for OpenAI Frontier, a platform OpenAI describes as a way for companies to build and manage teams of AI agents with governance and security controls. (press.aboutamazon.com) It also widens OpenAI’s cloud footprint beyond Microsoft, which had been its most important infrastructure and distribution partner for years. CNBC reported the Amazon pact continues OpenAI’s move to diversify beyond Microsoft, while Amazon positions AWS against Azure in enterprise artificial intelligence. (cnbc.com) Amazon has been tying that infrastructure buildout to rising revenue. Reuters reported on April 9 that Chief Executive Andy Jassy said AWS’s artificial intelligence services were running at more than $15 billion in annualized revenue based on first-quarter 2026 performance. (reuters.com) Jassy told CNBC in February that OpenAI and Anthropic were now the two largest AI labs “significantly betting on Trainium.” Amazon has already invested billions in Anthropic, and Jassy said the OpenAI deal does not change that relationship. (cnbc.com) Wednesday’s announcement turns that earlier infrastructure pact into a product launch customers can actually buy against. Amazon is using Bedrock to make OpenAI models one option inside AWS, while using Trainium commitments and a larger cloud contract to lock in the compute behind them. (aboutamazon.com) (press.aboutamazon.com)