OpenAI GPT-5.4 generally available on Amazon Bedrock in AWS GovCloud (US-West)

Amazon Bedrock GPT-5.4 Support in AWS GovCloud (US-West)

Amazon Bedrock now supports GPT-5.4 from OpenAI in AWS GovCloud (US-West), providing government and regulated industry customers with access to the latest model for professional work. This release is backed by AWS GovCloud's enterprise-grade security and compliance.

Key features include:

• Native computer-use capabilities
• Deep reasoning across coding, documents, and multi-step tasks
• High-performance inference engine with isolated queues and durable state for fault-tolerant workloads
• Data remains in-partition and is never used to train models

What to do

• Check the AWS Regions page for regional availability
• Read the launch blog for more information
• Refer to the Amazon Bedrock docs for documentation
• Follow the getting started blog for a step-by-step walkthrough

Source: AWS release notes

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