この日はAWS Architecture Blogから4件の記事が公開され、AIワークロードのアーキテクチャ設計が中心テーマとなりました。re:Invent 2025では、AWS Well-Architected Lensとして新設の「Responsible AI Lens(責任あるAI)」に加え、「Machine Learning Lens」と「Generative AI Lens」の2つの大幅更新が発表されました。生成AIレンズの更新には新たなベストプラクティスや高度なシナリオガイダンス、責任あるAI・データアーキテクチャ・エージェント型ワークフローに関する改善が含まれます。また、Amazon API Gatewayを用いてAmazon Bedrock実装をガバナンスするリファレンスアーキテクチャ(認可制御、利用クォータ、リアルタイムのレスポンスストリーミング)も紹介され、企業規模でのAIガバナンス実現を支援しています。
re:Invent 2025で3つのWell-Architected Lens(Responsible AI/ML/Generative AI)を発表
Well-Architected Generative AI Lensの更新: 新ベストプラクティスとエージェント型ワークフロー指針
Well-Architected Machine Learning Lensの更新
Amazon API GatewayによるAmazon Bedrock向けAIゲートウェイ構築
We are excited to announce the updated AWS Well-Architected Machine Learning Lens, now enhanced with the latest capabilities and best practices for building machine learning (ML) workloads on AWS.
We are delighted to announce an update to the AWS Well-Architected Generative AI Lens. This update features several new sections of the Well-Architected Generative AI Lens, including new best practices, advanced scenario guidance, and improved preambles on responsible AI, data architecture, and agentic workflows.
At re:Invent 2025, we introduce one new lens and two significant updates to the AWS Well-Architected Lenses specifically focused on AI workloads: the Responsible AI Lens, the Machine Learning (ML) Lens, and the Generative AI Lens. Together, these lenses provide comprehensive guidance for organizations at different stages of their AI journey, whether you're just starting to experiment with machine learning or already deploying complex AI applications at scale.
In this post, we'll explore a reference architecture that helps enterprises govern their Amazon Bedrock implementations using Amazon API Gateway. This pattern enables key capabilities like authorization controls, usage quotas, and real-time response streaming. We'll examine the architecture, provide deployment steps, and discuss potential enhancements to help you implement AI governance at scale.