# The government switched off the best AI model in the world over a bug it won't show us

> Washington forced Anthropic to kill Fable 5 over an unproven 'jailbreak' — and won't show its work.

*Three days. That's how long Fable 5 lasted.*

By The InsidersFeed Desk · InsidersFeed
Canonical: https://insidersfeed.com/ai-policy/government-switched-off-fable-5

> **Key:** **The take:** a government just reached through the internet and switched off the most capable consumer AI model on Earth, three days after launch, citing a security problem it has not shown anyone. Whatever you think of Fable 5, that is the part that should keep you up.

Timeline: 9 June, Anthropic launches Fable 5. 12 June, 5:21pm ET, a directive lands. By Friday the model is dark — Fable 5 and the restricted Mythos 5, gone. Not throttled. Off. For everyone, because the order covers *every foreign national*, including Anthropic's own non-American staff.

## The receipts are missing

Anthropic's account is blunt: it got **verbal** notice of a 'potential narrow, non-universal jailbreak,' watched a demo that turned up a handful of already-known minor bugs, and flatly disagrees it warrants pulling the model. The government's actual reasoning? Not published. We are asked to accept a kill order on a model based on a vulnerability nobody outside the room has seen.

> **Note:** **We'll be fair:** if there's a genuine, severe national-security exploit, acting fast is defensible — and 'national security' is exactly the category where governments don't show their hand. Granted. But 'trust us' is not a standard you get to apply to switching off infrastructure millions were using yesterday.

## And the kicker

Anthropic's own rebuttal points at OpenAI's **GPT-5.5**, arguing rivals have the same capability. So either the risk is real and universal — in which case why is only Anthropic dark? — or it's narrow enough that one company's recall is theatre. With an IPO weeks away, Anthropic has every reason to settle this fast and say little. Which is exactly why someone should be asking loud questions now.

## FAQ

### What did the US government actually do?
Issued an export-control directive (12 June 2026) barring access to Fable 5 and Mythos 5 by any foreign national, citing national security. It reportedly came as a letter from Commerce Secretary Howard Lutnick to Anthropic CEO Dario Amodei. The detailed rationale isn't public.

### Did Anthropic agree with the order?
No. It calls the directive a misunderstanding, says it only had verbal notice of a 'narrow, non-universal jailbreak', and is pushing to restore access — while complying in the meantime.