Story perspectives

US Admin Lifts Freeze, Anthropic Restores Claude Mythos 5

6/27/2026

Summary

Story summary

The Trump administration partially lifted the export-control freeze, letting Anthropic redeploy Claude Mythos 5 to more than 100 U.S. firms.
Commerce Secretary Howard Lutnick said Anthropic’s safeguards now satisfy the criteria for trusted partners.
The June 12 order had halted Mythos 5 and its less-guarded counterpart Fable 5 over foreign-adversary misuse concerns.
Anthropic announced continued negotiations to make Fable 5 generally available, but gave no timeline.

History

Historical Context

In 1991 Phil Zimmermann’s PGP exposed U.S. cryptography bans, prompting relaxations that culminated in President Bill Clinton’s 1999 amendment to the Export Administration Regulations, which lifted key-length limits on commercial encryption. Building on that precedent, Anthropic obtained a partial export exception for its Claude Mythos 5 model, aiming to expand U.S. AI deployment abroad.

1 of 2

Story summary

The Trump administration partially lifted the export-control freeze, letting Anthropic redeploy Claude Mythos 5 to more than 100 U.S. firms.
Commerce Secretary Howard Lutnick said Anthropic’s safeguards now satisfy the criteria for trusted partners.
The June 12 order had halted Mythos 5 and its less-guarded counterpart Fable 5 over foreign-adversary misuse concerns.
Anthropic announced continued negotiations to make Fable 5 generally available, but gave no timeline.

1 / 2