US partially reverses Anthropic ban, clearing Mythos 5 for 100+ trusted organizations
The Trump administration allowed Anthropic to redeploy its cybersecurity-focused Claude Mythos 5 model to more than 100 specific US companies and government agencies, partially undoing a June 12 export-control directive that had banned access by any foreign national and led Anthropic to pull both Mythos 5 and Fable 5 entirely.
Commerce Secretary Howard Lutnick wrote to Anthropic's Tom Brown that appropriate safeguards are in place to permit certain trusted partners to access the Claude Mythos 5 model, and the new permission notably extends to non-American employees at those organizations — a group the original ban had covered, including Anthropic's own non-US staff. The directive did not address Fable 5. Anthropic said it was restoring access quickly for critical-infrastructure defenders and would keep pushing for broader Mythos 5 access.

WHY IT MATTERS
The first real test of whether the US can pull a frontier model off the market and then walk it back — and the precedent now governing which organizations get access to top-end cyber-capable models.






