OpenAI's GPT-5.6 Terra and Luna Hit AWS GovCloud

OpenAI's GPT-5.6 Terra and Luna models are now live on Amazon Bedrock in AWS GovCloud (US-West and US-East), giving you two capability tiers—balanced performance with Terra at half the cost of GPT-5.5, and lightning-fast Luna for budget-conscious workflows. Both models support 1 million token context windows and prompt caching with 90% discount on repeated context, perfect for autonomous coding agents, genomics analysis, and cybersecurity research without the token bloat.