Get started with OpenAI GPT-5.5, GPT-5.4 models, and Codex on Amazon Bedrock

Amazon Bedrock launches GPT-5.5 and GPT-5.4 models for developers. GPT-5.5 is optimized for complex customer workloads and agentic workflows. GPT-5.4 offers superior price-performance for standard coding tasks. Users access both models via Amazon Bedrock's Responses API. The inference engine supports high performance and reliability for production workloads.