Generative AI Amazon Bedrock OpenAI OpenAI on Amazon Bedrock (Limited preview) OpenAI frontier models for reasoning, coding, and agentic workflows, on Amazon Bedrock Introducing OpenAI models on Amazon Bedrock The latest OpenAI models, including GPT-5.5 and GPT-5.4, will be available in preview on Amazon Bedrock. Use OpenAI's frontier models through the same Bedrock APIs you already rely on, with unified security, governance, and cost controls. No additional infrastructure to configure, no new s...