Anthropic restored Claude Fable 5, its most powerful publicly accessible AI model, effective July 1, 2026, following a 19-day suspension triggered by a jailbreak report submitted by Amazon researchers. The restoration came one day after the U.S. Department of Commerce lifted export controls imposed on June 12. Fable 5 returned globally across Claude.ai, the Claude Platform, Claude Code, and Claude Cowork on July 1, with access on AWS, Google Cloud, and Microsoft Foundry to follow. The restored model includes a purpose-built safety classifier that blocks the specific jailbreak technique Amazon identified in over 99% of cases, alongside broader cybersecurity guardrails. Fable 5 originally launched on June 9, 2026, and was suspended three days later. The suspension also affected Claude Mythos 5, which is restricted to a limited set of organizations.