AWS Bedrock Integrates OpenAI Frontier Models, Codex in Limited Preview

Amazon and OpenAI have deepened their partnership, integrating frontier models and Codex into AWS Bedrock as of April 30, 2026, with IAM security, CloudTrail logging, and usage counting toward AWS commitments for seamless enterprise adoption. The rollout began April 28—hours after OpenAI ended Microsoft exclusivity—featuring a rapid Bedrock preview, backed by Amazon's $50 billion investment, OpenAI's $100 billion eight-year AWS spend, and 2-gigawatt Trainium deal. Despite an intraday 1.13% dip and April 29 close down 0.52% at $259.70, the move bolsters AWS's AI competitiveness long-term.