Less than a day after OpenAI and Microsoft announced the end of their exclusive cloud arrangement, Amazon made OpenAI's latest reasoning models, Codex, and a new Bedrock Managed Agents service available through AWS—acting on the $50 billion investment deal Amazon signed with OpenAI earlier this year. The move marks OpenAI's first significant distribution outside Azure and signals a shift to a multi-cloud strategy; Amazon CEO Andy Jassy called the development "a very interesting announcement." The Bedrock Managed Agents service lets customers build OpenAI-powered agents with built-in steering and security controls, positioning AWS directly against Azure AI Foundry in the enterprise agentic market.