Getting AI from pilot to production, with evidence.
Anthropic's 1 Oct 2026 Barclays story reports a RAG assistant used by 16,000 UK staff and 120,000 emails a day routed by Claude; it gives no cost, accuracy or error data.
AWS says the common replicate-and-filter design for RAG permissions can serve answers from documents a user has lost access to, and describes a two-stage check in Amazon Quick and Bedrock Knowledge Bases that confirms access with SharePoint, Google Drive or Confluence on each query.
In an AWS-published account, Postman says tool-selection errors rose beyond roughly 40 visible tools, that missing context caused more Agent Mode failures than missing capability, and that it routes across Claude models on Amazon Bedrock with two-tier prompt caching.
Adoption surveys agree on the gap: most companies say they are "using agents," but only a small fraction run one in production at scale. The difference is rarely the model.
The Enterprise AI Playbook from Stanford's Digital Economy Lab is the most useful document on this subject this year. Here is the short version for people who have to make it happen.