
Amazon Engineering
Evaluate AI agents systematically with Agent-EvalKit
7 mins
ResearchTop-tier AI blogs, technical tutorials, and research analysis written by the people shaping the industry.
Last Brew Time: Jun 11, 2026, 11:01 AM PT






![[AINews] Open Models, Model Labs vs Agent Labs, and What's Untrainable — Sarah Guo](https://substackcdn.com/image/fetch/$s_!76lN!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F709bf7b6-3173-4a7f-9099-fcabd2ebd438_1954x2078.png)



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