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

As we previewed in What’s Next with AWS 2026 , we’re announcing the availability of OpenAI GPT-5.5, GPT-5.4 models, and Codex on Amazon Bedrock , giving you access to frontier models and a coding agent for software development. According to OpenAI, GPT-5.5 and GPT-5.4 models are excellent for coding, reasoning, agentic workflows, and complex professional work. You can use GPT-5.5 for the hardest customer workloads and GPT-5.4 for the best price-performance.