Claude Fable 5.2 is available in AWS GovCloud for US government work

Amazon tells that Claude Fable 5.2 is available in AWS GovCloud (US), the Amazon cloud for US government work. It is the most powerful generally available model of Anthropic for technical work. Anthropic recommends it for software engineering, scientific research and finance. Claude Mythos 5.2, the same model with full cyber and biology functions, is available only through verification programs of Anthropic.

What it does

Anthropic tells that Fable 5.2 can work for hours and to many days with no person to monitor it. It does large engineering tasks across many code repositories and tests its own work. It finds root causes that earlier Claude models miss.

The proof

The text gives no test scores. Anthropic tells that in its tests the model led hundreds of subagents, which are helper agents. It flagged results that do not occur again.

What is not known

Anthropic names Fable 5.2 and Mythos 5.2 covered models. They must have data retention for safety checks. Until Enterprise Frontier Safeguards is available, eligible customers can use Fable 5.2 with zero data retention. The text gives no date for it and no price.

Insight: The vendor sets the data rule for top models

In October, Google Cloud let customers select which company keeps their Claude data. Here, Anthropic sets the rule for its two newest models. Data is kept for safety checks, and zero retention is for a short time. Safety monitoring decides who keeps your data, and the vendor sets that term. For regulated buyers, the rule seems to change when Enterprise Frontier Safeguards starts.