ChatGPT desktop app configured to use Amazon Bedrock in AWS GovCloud (US)
OpenAI’s ChatGPT desktop app can be configured to route model inference to Amazon Bedrock Mantle in AWS GovCloud (US) (us-gov-west-1), giving access to OpenAI frontier models and the Codex coding agent while using AWS IAM, region controls, and optional zero data retention. The walkthrough covers authentication options (Bedrock API key or AWS SDK credential chain, including AWS SSO), config files, network restrictions, and a controlled local deployment workflow for organizations with strict data‑residency and security requirements.