OpenAI’s new open-weight models, gpt‑oss‑120b and gpt‑oss‑20b, are now available to AWS customers for the first time via Amazon Bedrock and Amazon SageMaker JumpStart, enabling secure deployment on AWS infrastructure. This marks the first time OpenAI models have been offered on AWS.
AWS announces that gpt‑oss‑120b offers up to 3× better cost-performance than Google’s Gemini, 5× more efficient than DeepSeek-R1, and 2× more efficient than OpenAI’s o4-mini when running in Bedrock.
These models empower developers to build generative AI applications with strong reasoning, coding, and analytical capabilities while benefiting from enterprise-grade security, VPC isolation, compliance standards, and AWS’s established deployment tooling.
AWS CEO Matt Garman called this move a “powerhouse combination”, praising the merging of OpenAI’s advanced technology with AWS’s scale and global reach.
SageMaker JumpStart provides deployment templates, chain-of-thought logic support, and tool integrations like agentic SDKs such as Strands Agents. gpt‑oss models can be fine‑tuned, evaluated, or run behind corporate firewalls.
OpenAI positions this launch as a milestone in democratizing AI access—supporting developers, nonprofits, and enterprises across cloud platforms beyond Microsoft Azure. The open-weight models, provided under Apache 2.0 license, allow fine-tuning and on-premise use.
This collaboration breaks from OpenAI’s previous exclusive Microsoft API arrangement, leveraging community demand while maintaining rigorous safety evaluations.
This expansion ushers in unprecedented model choice on AWS—alongside Amazon’s existing models like Claude, DeepSeek-R1, and Meta’s offerings—and signals a strategic evolution in how cloud providers align with AI model access.
Key Highlights:
- First official time OpenAI models (gpt‑oss‑120b/20b) are available on AWS
- Accessible via Amazon Bedrock and SageMaker JumpStart
- Significant cost-efficiency advantages over competing models
- Enterprise-grade deployment with security, agent frameworks, and fine-tuning
- Opens new cloud provider choice amid AI competition beyond Microsoft
