Redeploying Claude Fable 5 \ Anthropic
Anthropic is redeploying Claude Fable 5 starting July 1 following the lifting of export controls, with updated cybersecurity safeguards and a new industry jailbreak framework.
Announcements Redeploying Fable 5 Jun 30, 2026 Update Claude Fable 5 and Mythos 5 redeployed Jul 1, 2026 Access to Claude Fable 5 and Mythos 5 is now restored. On Friday, June 12, the US government applied export controls to our newest models, Claude Fable 5 and Claude Mythos 5. This required us to restrict access to foreign nationals, whether inside or outside the United States. Because the order took effect immediately and we had no reliable way to verify nationality in real-time, we suspended access to both models for all users. As of today, June 30, the export controls on Fable 5 and Mytho
Explore this link on the map →related reading
- Statement on the US government directive to suspend access to Fable 5 and Mythos 5 \ Anthropicanthropic.com
- Claude Fable 5 and Claude Mythos 5 \ Anthropicanthropic.com
- Security incident disclosure — July 2026huggingface.co
- Claude Mythos Preview System Cardwww-cdn.anthropic.com
- Fable: The First Forbidden Model - by Somewherevectorculture.org
- Thoughts on Claude Fable's silent safeguards — LessWronglesswrong.com
- Responsible Scaling Policy Updates \ Anthropicanthropic.com
- Simon Willison’s Weblogsimonwillison.net
- Claude Fable 5 & Claude Mythos 5 — AI System Cardsmalob.github.io
- What it feels like to work with Mythos - by Ethan Mollickoneusefulthing.org
- Anthropic’s Transparency Hub \ Anthropicanthropic.com
- Claude 4 System Cardwww-cdn.anthropic.com