OpenAI Models Land on AWS Through Amazon Bedrock

Overview

OpenAI announced on April 28, 2026 that its GPT models and Codex coding agent are now available through Amazon Bedrock, AWS's managed AI platform. The deployment follows the prior day's announcement of the Microsoft-OpenAI partnership restructure ending Azure exclusivity, and represents OpenAI's first major multi-cloud rollout.

What's Available

• GPT Models: AWS customers can experiment with OpenAI's latest GPT models through Amazon Bedrock, with general availability expected in the coming weeks.
• Codex Agent: OpenAI's code-writing agent is also available via Amazon Bedrock Managed Agents, enabling developers to build sophisticated customized agents with persistent memory of previous interactions.

How It Happened

The AWS deployment is a direct result of Amazon's February 2026 commitment of up to $50 billion to OpenAI, made on condition that AWS would have rights to serve OpenAI's new agent-building tool, Frontier. This created a conflict with OpenAI's Azure exclusivity, leading to the partnership restructure that made multi-cloud deployment possible.

Significance

AWS holds roughly 31% of the global cloud market, the largest share of any provider. Making OpenAI models available through Bedrock immediately puts them within reach of AWS's massive enterprise customer base, allowing companies to adopt OpenAI technology without migrating off existing AWS infrastructure. This significantly expands OpenAI's enterprise market reach beyond Azure's customer base.

Source: CNBC