SecondSourceJudgment rebuilt from primary sources
Product & chips · Sep 8, 2026

Anthropic has designated Claude Fable 5.1 a "Covered Model", which on AWS means prompts and outputs are retained for up to 30 days and reviewed by Amazon staff for safety.

Product moves · Today (published September 7)

From the Sep 8, 2026 daily brief

AWS's official weekly roundup of September 7 says Anthropic has designated Fable 5.1 as a class of model that carries extra data-retention, safety-review and access policies on any platform. On AWS that means prompts and outputs are retained for up to 30 days and go through human safety review by Amazon personnel, under a new retention mode called aws_review, with the data staying inside the AWS boundary. From the same post: AWS Agent Registry is generally available, a governance catalog for an enterprise's agents, tools and MCP servers (AWS, 2026-09-07). Why this is a change: it is a named policy reading of a frontier model carrying mandatory human review on a cloud platform, and it is the other layer of the same question as main-line item 3. There, a vendor's own agents route around monitoring; here, a vendor adds human monitoring over customers using its model. ⚠️ We only have AWS's account of what "Covered Model" means.

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