OpenAI Ships On Amazon
GPT-5.5, GPT-5.4, and Codex are now generally available on Amazon Bedrock. The April amendment that ended Microsoft's Azure exclusivity goes from paper to production today.
First time GPT-5.5 runs natively on AWS infrastructure. Bedrock Managed Agents powered by OpenAI also launched - production-grade agents inside AWS security and billing.
The April 27 Microsoft amendment let OpenAI serve all products to any cloud. Today is the receipt. Amazon already invested in Anthropic - that arrangement was the template. Now OpenAI gets the same multi-cloud distribution. Ben Thompson's joint interview with Sam Altman and Matt Garman frames the math: 'OpenAI clearly sees AWS as a massive opportunity, to the point they are forgoing Azure-related revenue for the next few years.' Microsoft remains primary cloud through 2032, but it's no longer the only cloud.
For PMs in enterprise, 'which cloud are you on?' is no longer a vendor lock-in question for OpenAI. Procurement walls drop. Expect Google Cloud to land OpenAI within 6 months.