OpenAI’s open weight models now available on AWS

Amazon Web Services announced that OpenAI open weight models will be available via Amazon Bedrock and Amazon SageMaker AI for the first time, enabling customers to build generative artificial intelligence applications. “OpenAI’s two new open weight foundation models – gpt-oss-120b and gpt-oss-20b – will put more powerful AI technologies into the hands of organizations and expand the impact of OpenAI’s leading technology by making it available to the millions of customers on AWS,” according to the e-commerce giant. Amazon further said in a blog post that, “Running in Amazon Bedrock, the larger of the two open weight models is 3-times more price-performant than the comparable Gemini model, 5x more than DeepSeek-R1, and 2x more than the comparable OpenAI o4 model. This news continues AWS’s commitment to model choice by enhancing the existing broad selection of fully managed models in Amazon Bedrock, as well as by making them accessible in Amazon SageMaker JumpStart, and reinforces AWS’s momentum in delivering innovative generative AI technologies to meet customers’ needs.”