OpenAI GPT OSS and NVIDIA Nemotron Models Added to Amazon Bedrock on AWS GovCloud (US)

Amazon Bedrock expanded its foundation model catalog in AWS GovCloud (US) with OpenAI’s open-weight GPT OSS and NVIDIA Nemotron models, enhancing generative AI capabilities.

By Noah Ellis · Editorial pseudonym · 2026-04-29 · 1 min read

AI-ASSISTED REPORTING · RETROSPECTIVE ARCHIVE

Retrospective edition: 2026-04-29. Source published: 2026-04-29. Added to this archive: 2026-11-03. This briefing was prepared later from the linked announcement; it was not published on this website on the historical edition date.

AWS enhanced Amazon Bedrock by supporting OpenAI’s open-weight GPT OSS (120B and 20B) and several NVIDIA Nemotron models, enabling flexible use of high-performance generative AI models through a unified API. This allows developers to select optimal models per use case without changing application code.

The open-weight models provide transparency and flexibility, including datasets and training recipes, facilitating trust and customization. Powered by Mantle, a distributed inference engine, these models benefit from performant, reliable serverless serving with automated capacity management and OpenAI API compatibility. Availability in AWS GovCloud supports compliant enterprise AI innovation.

Source & further reading

OpenAI GPT OSS and NVIDIA Nemotron Models Available on Amazon Bedrock in AWS GovCloud (US) ↗

Source published 2026-04-29. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.