On April 29, 2026, OpenAI officially opened GPT-5.5 models, Codex Agent, and the new Bedrock Managed Agents service on Amazon Bedrock. This is OpenAI’s first major multi-cloud deployment after ending its Microsoft exclusivity agreement, marking the official entry of enterprise AI into the multi-cloud agentic era.
The Core Change in the Deal
OpenAI’s updated cooperation agreement removes Microsoft’s exclusivity clause. Microsoft retains its license until 2032, but its monopoly is officially over. This means cloud platforms like AWS and Google Cloud can now directly offer OpenAI model services.
On Bedrock, enterprises can access:
- GPT-5.5 Model: Via Bedrock API, supporting direct integration with existing AWS infrastructure
- Codex Agent: OpenAI’s programming agent available on AWS
- Bedrock Managed Agents: New service built on OpenAI reasoning models, with built-in steering and security features
Practical Implications for Enterprises
For companies already in the AWS ecosystem, this reduces the complexity of cross-cloud integration. Previously, using OpenAI models required additional Azure connections or standalone API configurations — now it can all be done within the Bedrock console.
The steering feature of Bedrock Managed Agents deserves particular attention — it allows enterprises to set behavioral boundaries and security policies when agents execute tasks autonomously. This is especially important for industries with strict compliance requirements like finance and healthcare.
Landscape Assessment
OpenAI’s multi-cloud strategy sends a clear signal: model companies are no longer tied to a single cloud vendor. This is good news for enterprises — they can use the best models on their familiar cloud platforms without changing infrastructure choices for model capabilities.
At the same time, this intensifies competition among cloud vendors. Azure previously gained a significant AI advantage through OpenAI exclusivity, and that advantage is now eroding. AWS and Google Cloud are catching up quickly.
Action Recommendations
- AWS Users: Test GPT-5.5 and Codex directly on Bedrock, comparing cost and performance with existing Azure deployments
- Multi-cloud Strategists: Focus on Bedrock Managed Agents’ steering and security features, evaluate compliance fit
- Watchers: The first few weeks after exclusivity ends are often a price promotion window — watch for pricing changes across cloud vendors
Primary Sources
- AWS Bedrock OpenAI Integration
- Cointelegraph Analysis: Agentic Migration
- Community discussion (X/Twitter)