At AWS Summit New York 2025, a silent revolution began. OpenAI and Amazon Web Services joined forces to make open-weight generative AI mainstream — and enterprise-ready. With the integration of gpt-oss-120B and 20B models into Amazon Bedrock and SageMaker, a new era of agentic, scalable, and sovereign AI has arrived.
Amazon Web Services (AWS) has announced a transformative collaboration with OpenAI, bringing the power of OpenAI’s open weight models to millions of AWS customers for the first time. By integrating OpenAI’s gpt-oss-120b and gpt-oss-20b models into Amazon Bedrock and Amazon SageMaker AI, AWS is enabling organizations to build advanced generative artificial intelligence (AI) applications with unprecedented ease and efficiency. This partnership marks a significant step forward in democratizing access to cutting-edge AI technologies, reinforcing AWS’s position as the world’s most comprehensive cloud platform and a leader in generative AI innovation.
Expanding Access to Advanced AI
AWS has long been committed to providing businesses with the tools to innovate and scale. The introduction of OpenAI’s open weight models to Amazon Bedrock and Amazon SageMaker AI represents a natural evolution of this mission, offering customers a broader selection of AI models to address diverse use cases. These models, designed with advanced reasoning capabilities, empower organizations—from startups to Fortune 500 enterprises—to create sophisticated AI-driven applications that transform business processes.
The gpt-oss-120b and gpt-oss-20b models deliver exceptional performance at a competitive cost. Running on Amazon Bedrock, the larger model offers up to three times better price-performance than comparable models from Gemini, five times better than DeepSeek-R1, and twice that of OpenAI’s o4 model. This cost-efficiency, combined with the models’ robust capabilities, makes them an attractive choice for organizations seeking to maximize their AI investments without compromising on quality.
Atul Deo, Director of Product at AWS, emphasized the significance of this development: “Open weight models are an important area of innovation in the future development of generative AI technology, which is why we have invested in making AWS the best place to run them—including those launching today from OpenAI. The addition of OpenAI as our newest open weight model provider marks a transformative shift in access to advanced technology.”
Empowering Agentic AI and Complex Workflows
OpenAI’s open weight models are particularly well-suited for agentic AI, a rapidly emerging field that enables AI systems to autonomously execute complex tasks. Through Amazon Bedrock AgentCore, customers can deploy highly effective AI agents powered by these models, leveraging AWS’s enterprise-grade security and scalability to meet the demands of production applications. The models also integrate seamlessly with tools like Guardrails, which blocks up to 88% of harmful content through configurable safeguards, ensuring safe and responsible AI deployment. AWS plans to introduce support for Custom Model Import, Knowledge Bases, and additional customization capabilities in the future, further enhancing flexibility.
These models excel in use cases such as coding, scientific analysis, and mathematical problem-solving. Their advanced reasoning capabilities, including adjustable reasoning levels and chain-of-thought outputs, allow them to break down complex problems into logical, manageable steps. With support for instruction-following and tools like web search and code interpreters, the models can access real-time information and perform multi-step tasks. Featuring a 128K context input window, they are capable of processing extensive documents and conversations, making them ideal for applications like customer service transcripts, technical documentation, and academic research.
Dmitry Pimenov, Product Lead at OpenAI, highlighted the potential of this collaboration: “Our open weight models help developers—from solo builders to large enterprise teams—unlock new possibilities across industries and use cases. Together with AWS, we’re providing powerful, flexible tools that make it easier than ever for customers to build, innovate, and scale.”
A Commitment to Safety and Responsibility
Safety is a core pillar of OpenAI’s open weight models. Each model has undergone rigorous safety training and evaluation to ensure responsible deployment in real-world applications. AWS complements this focus with its robust security infrastructure, including tools like Guardrails and enterprise-grade protections, to provide customers with confidence in their AI deployments. This shared commitment to responsible AI aligns with the needs of organizations prioritizing ethical technology adoption in an increasingly AI-driven world.
Driving Innovation Across Industries
The integration of OpenAI’s models into Amazon Bedrock and Amazon SageMaker AI enhances AWS’s already extensive portfolio of over 100 models from leading AI providers, including DeepSeek, Meta, Mistral AI, Luma AI, TwelveLabs, and Writer. This diverse selection empowers customers to choose and combine models that best suit their specific requirements, whether they’re modernizing business processes or developing next-generation applications. Amazon Bedrock has already proven its value to tens of thousands of global customers, including fast-growing startups like DoorDash and established enterprises like Pfizer, Siemens, and TUI, as well as trusted government organizations.
The announcement of this partnership coincided with AWS Summit New York 2025, where Swami Sivasubramanian, AWS Vice President for Agentic AI, showcased new innovations for building AI agents. Alongside the integration of OpenAI’s models, AWS announced enhancements to Amazon Bedrock AgentCore, new listings in AWS Marketplace, and a $100 million investment to accelerate agentic AI development. These initiatives underscore AWS’s commitment to driving the next wave of AI innovation.
Powering America’s AI Future
The partnership also aligns with broader efforts to advance U.S. technological leadership. At the Pennsylvania Energy and Innovation Summit, Amazon leadership joined policymakers and industry executives to discuss the role of AI in shaping America’s future. The availability of OpenAI’s models on AWS supports this vision by providing organizations with the tools to innovate and compete on a global scale. Additionally, AWS’s development of a custom liquid cooling system in just 11 months addresses the growing demand for efficient infrastructure to support next-generation AI workloads, further demonstrating its leadership in the space.
A Transformative Step Forward
The collaboration between AWS and OpenAI represents a pivotal moment in the evolution of generative AI. By making OpenAI’s open weight models available through Amazon Bedrock and Amazon SageMaker AI, AWS is empowering organizations worldwide to harness the full potential of AI. This partnership not only expands access to advanced technology but also reinforces AWS’s role as a leader in delivering innovative, secure, and scalable AI solutions.
As organizations increasingly embrace AI to drive transformation, the combination of OpenAI’s cutting-edge models and AWS’s robust cloud infrastructure provides a powerful foundation for innovation. From agentic workflows to scientific research, this partnership opens new possibilities for businesses to build, scale, and succeed in an AI-driven future.