AWS GovCloud adds OpenAI GPT-5.4 and NVIDIA Nemotron 3 Super
AWS GovCloud (US-West) Region now offers OpenAI GPT-5.4 and NVIDIA Nemotron 3 Super 120B models via the Kiro IDE and CLI. These models enhance AI application development with capabilities like complex reasoning, coding, and efficient inference. GPT-5.4 features a 272K context window, while Nemotron 3 offers efficient inference via a hybrid mixture-of-experts architecture and a 256K context window. Users can access these models by updating and restarting their IDE or CLI.
- →OpenAI GPT-5.4 available for complex reasoning and coding
- →NVIDIA Nemotron 3 Super 120B available as open weight model
- →Accessing new models requires IDE/CLI update
Features (2) ›
- OpenAI GPT-5.4 available for complex reasoning and coding
OpenAI GPT-5.4 is now available in the Kiro IDE and CLI for complex reasoning, coding, document analysis, and multi-step agentic workflows, running on Amazon Bedrock's inference engine with isolated queues and durable execution. It offers a 272K context window and a 1.2x credit multiplier.
- NVIDIA Nemotron 3 Super 120B available as open weight model
NVIDIA Nemotron 3 Super 120B is now available in Kiro as an open weight model. This hybrid mixture-of-experts model activates only 12B of its 120B parameters for high compute efficiency and fast inference, featuring a 256K context window and 32K max output, with a 0.25x credit multiplier.
Notes (1) ›
- Accessing new models requires IDE/CLI update
To access the new models, ensure your Kiro IDE or CLI is updated to the latest version and then restart it. The models can then be accessed from the model selector.
https://aws.amazon.com/about-aws/whats-new/2026/06/kiro-gpt-nemotron-launch-aws-govcloud-us/