🪦 Dead, then revived
Claude Fable 5 & Mythos 5 (June Suspension)
Product killed · Government Order (Reversed) · shut down June 12, 2026
- Born
- Died
- Lifespan
- 3d
- Cause of death
- Government Order (Reversed)
- Killed by
- U.S. Government
- Type
- Model
Anthropic's most powerful model ever, a 'Mythos-class' tier above Opus that scored 10%+ higher than Opus 4.8. Launched June 9, killed June 12 when the U.S. Commerce Department issued a national-security export directive barring use by any foreign national anywhere, Anthropic's own staff included. The only way to comply was to shut it off for everyone. Dead for 19 days until Commerce lifted the controls on June 30; Fable 5 returned globally on July 1 with a new jailbreak classifier. A rare resurrection: killed by government order, then un-killed.
Collateral damage: Developers who integrated Fable 5 during its 3-day launch window lost access for 19 days with no warning. On its return, bundled access was capped then moved to metered credits on July 7.