Anthropic cleared to restore Mythos 5 for ~100 critical-infrastructure organizations after 15-day suspension
The US Commerce Department ended a 15-day block on Claude Mythos 5, restoring access for roughly 100 government agencies and private companies in Annex A — including non-US nationals at Anthropic and approved organizations — while Fable 5 stays offline pending Pentagon and NSA review. With OpenAI facing the same gating on GPT-5.6 Sol, the ad-hoc suspension-and-clearance pattern is hardening into a formal approval layer that now sits between frontier AI labs and their most capable models' deployment.
Source: the-decoder.com ↗
The model is Anthropic's most powerful AI model for cybersecurity and can now be used again by US organizations that operate and protect critical infrastructure.
Anthropic
Why this matters
- → US govt now gates frontier AI model access through approval layer, not labs' choice
- → Critical-infrastructure orgs regain cybersecurity capabilities after 15-day blackout
- → Suspension-and-clearance pattern hardens into formal regulatory precedent
AI gating emerges as policy