AWS has a deep partnership with Anthropic, long offering its Claude models, one of OpenAI's biggest competitors. The cloud giant has invested extensively in Anthropic, with Anthropic training its new models using AWS infrastructure, including the cloud company's in-house Trainium chips via the Project Rainier supercluster of Trainium2 UltraServers.

These models are now accessible via AWS Bedrock and SageMaker, putting Amazon in direct play with Microsoft and giving AWS customers a new way to build and run AI applications using OpenAI technology.

Amazon.com Inc. plans to make OpenAI’s latest artificial intelligence models available to customers, the first time the cloud computing giant has offered products from the leading AI startup.