Anthropic's Mythos 5 returns for a select few — so what's blocking Fable 5?
anthropic can redeploy mythos 5 to a select group of cyber defenders after us government approval, but the public fable 5 remains in limbo.
the us government granted anthropic a partial reprieve, allowing the cybersecurity model mythos 5 to return for a small group of trusted cyber defenders and infrastructure providers, while maintaining a block on foreign national access for the general public. commerce secretary howard lutnick cited anthropic's commitment to government safety protocols in the decision, which mirrors the case-by-case exemption recently given to openai's gpt-5.6. however, the rollout leaves the consumer-grade fable 5 in regulatory limbo, highlighting a widening gap between national security priorities and commercial model availability.