Anthropic Claude Update

Anthropic suspended access to Claude Fable 5 and Claude Mythos 5 after a US government export control directive. The statement says the action was taken for compliance, cites a suspected narrow jailbreak, and notes other Anthropic models are unaffected.

• The statement references a suspected jailbreak of Fable 5 and mentions previously known, minor vulnerabilities.
• Anthropic says no universal jailbreak has been found and that the reported technique appears narrow and non-universal.
• The company describes its defense in depth safeguards and monitoring as part of its security posture.

• Access to Claude Fable 5 and Claude Mythos 5 is suspended for all users.
• The statement says the government directive did not provide specific details of the national security concern.
• Anthropic says it has not received a disclosure of a harmful non-universal jailbreak.

• Access to all other Anthropic models is stated to remain unaffected.
• Anthropic says it is complying with the legal directive and working to restore access as soon as possible.
• The statement notes a 30-day retention policy for customer data with Fable to help research and mitigate jailbreaks.

Product Information

Vendor: Anthropic

Product: Claude

Product type: Other

Platform: Web

Vendor release date: Jun 12, 2026

Original release notes: View on vendor site

Published on updatealert.io: Jun 13, 2026

Description: AI assistant for drafting, analysis, coding, and enterprise workflows.