OpenAI GPT-5.4 generally available on Amazon Bedrock in AWS GovCloud (US-West)
Today’s signal AWS What’s New recently reported OpenAI GPT-5.4 generally available on Amazon Bedrock in AWS GovCloud (US-West). Published context: June 3, 2026. Amazon Bedrock now supports GPT‑5.4 from OpenAI in AWS GovCloud (US-West) — giving government and regulated industry customers access to OpenAI’s most capable frontier model for professional work, backed by the enterprise-grade security and goverment compliance scope of AWS GovCloud (US). GPT‑5.4 supports native computer-use capabilities, and deep reasoning ...