# US directive pulls Fable 5 offline three days after launch

> A US directive led Anthropic to suspend Fable 5 and Mythos 5 for all users on 12 June.

*Launched Tuesday, dark by Friday. The brief.*

By The FeaturedDaily Desk · FeaturedDaily
Canonical: https://featureddaily.com/ai-policy/us-directive-pulls-fable-5-brief

> **Key:** **The one-liner:** the most capable public AI model on Earth went dark three days after launch — by government directive, not by choice.

**What happened.** On 12 June 2026 Anthropic received a US export-control directive barring access to **Fable 5** and the restricted **Mythos 5** by any foreign national. Because that scope reaches foreign nationals everywhere — including Anthropic's own non-US staff — the only way to comply was to disable both models for all users. Every other Anthropic model still works.

**What's disputed (developing).** Anthropic says it received only *verbal* notice of a 'potential narrow, non-universal jailbreak,' saw a demo that surfaced a few previously-known minor bugs, and disagrees that any of it justifies a recall. The directive reportedly came via a letter from Commerce Secretary Howard Lutnick to CEO Dario Amodei (per WSJ/Bloomberg). The government's detailed rationale has not been published.

**The kicker.** Anthropic's rebuttal points at OpenAI's GPT-5.5, arguing rivals share the same underlying capability — and notes it is reportedly weeks from a major IPO. So far, only Anthropic's models are dark.

> **Note:** **What to watch:** whether access is restored and on what terms, whether the government publishes its reasoning, and whether the same theory reaches rivals. As of 15 June 2026 it's unresolved — we'll update on a genuine change.

## Key takeaways

- What: a US export-control directive (12 June 2026) barred Fable 5 / Mythos 5 access by any foreign national.
- Result: the scope was so broad Anthropic switched both models off for everyone; other models are unaffected.
- Disputed: Anthropic says it got only verbal notice of a 'narrow, non-universal jailbreak' and wants it reversed.
- Why it matters: it's the machinery reaching through a deployed product to disable a live model.

## FAQ

### What happened to Fable 5?
A US export-control directive (12 June 2026) barred access by any foreign national, so Anthropic switched Fable 5 and Mythos 5 off for everyone. All its other models are unaffected.

### Is the security concern proven?
Not publicly. Anthropic says it received only verbal notice of a 'narrow, non-universal jailbreak' and disputes the recall; the government's rationale isn't public, so we treat it as developing.