The force behind Anthropic taking down the Mythos and Fable models: Amazon CEO, its 'major shareholder'

▤ Summary

Anthropic suspended access to its Fable and Mythos models after U.S. authorities moved to restrict the models over reported safety and export-control concerns. The trigger came from Amazon, which flagged that researchers could bypass safety guardrails and retrieve information relevant to cyber abuse. The situation escalated quickly into government intervention, talks with Anthropic, and a formal ban on access for users outside the United States. The story matters because it comes at a sensitive time for Anthropic as it prepares for an IPO and may face customer churn, valuation pressure, and closer regulatory scrutiny.

▦ Linked Companies

Anthropic

$10M to $25M