Aligning with its strategy to democratize AI and support model choice, AWS now enables businesses to deploy autonomous AI agents for complex tasks using OpenAI’s models via Bedrock’s AgentCore and enterprise-grade tools like Guardrails

Amazon Web Services (AWS) has announced that OpenAI’s newly released open weight foundation models—gpt-oss-120b and gpt-oss-20b—are now available on Amazon Bedrock and Amazon SageMaker, giving enterprises access to powerful generative AI capabilities within a secure and scalable cloud environment.

This marks the first time OpenAI’s open weight models are being offered on AWS platforms, significantly broadening access to cutting-edge AI technologies. According to AWS, the larger model, gpt-oss-120b, is up to 10 times more price-performant than comparable Gemini models and far outpaces others like DeepSeek-R1 and OpenAI’s own o4 model.

Empowering scalable AI innovation

The move aligns with AWS’s ongoing strategy to support model choice and democratize AI development. These models are especially well-suited for agentic AI applications, enabling businesses to deploy AI agents that can perform complex tasks autonomously using Amazon Bedrock’s AgentCore and enterprise-grade tools such as Guardrails, Custom Model Import, and Knowledge Bases.

“With today’s launch, we’re expanding the ways customers can build, innovate, and scale using generative AI,” said Atul Deo, Director of Product at AWS. “Adding OpenAI as an open weight model provider further enhances our vision of making AWS the best place to run next-generation AI models.”

Dmitry Pimenov, Product Lead at OpenAI, added, “Our open weight models give developers—from solo builders to enterprise teams—the flexibility to create smarter, more adaptive AI-powered solutions.”

Powerful models for diverse use cases

OpenAI’s models come with advanced reasoning capabilities, a 128K context window, and support for instruction following, tool usage, and chain-of-thought reasoning. These features make them ideal for a wide range of use cases—from agentic workflows and software development to scientific research and customer service.

The integration further solidifies Amazon Bedrock as a leading platform for generative AI development. With more than 100 AI models from providers like Meta, Mistral AI, Luma AI, and TwelveLabs, AWS continues to empower global organizations—including Pfizer, Siemens, and DoorDash—to modernize operations and accelerate AI-driven innovation.

This development also reinforces AWS’s position as the only major cloud provider offering such extensive model flexibility and enterprise-grade tooling for generative AI.