Anthropic disables access to Fable 5 and Mythos 5 to comply with government directive

Summary

Anthropic disabled access to its Fable 5 and Mythos 5 models for all customers after receiving an export control directive from the U.S. government, which cited "national security authorities." The order, received at 5:21 p.m. ET, instructed the company to suspend access by any foreign national, including Anthropic employees abroad and in the United States. Anthropic said its other models are not affected.

Related items

• InfoForrester gave Endor Labs the highest score possible in seven criteria, including innovation, AI application flaws, AI SCA, and AI coding toolchain. | Endor LabsSame vendor · Endor Labs Blog
• InfoMonitoring AI agent sessions: Leveraging embedding models to aid threat hunting and attack discovery workflowsSame vendor · Elastic Security Labs
• InfoCrowdStrike's new kill switch can stop rogue AI agents in their tracks, CEO saysSame vendor · CNBC Technology
• HighCVE-2026-88968: Claude Code Edit tool symlink race overwrites files outside workspace on macOSSame vendor · NVD/CVE Database
• HighCVE-2026-88066: Claude Desktop on Windows git.exe execution via search pathSame vendor · NVD/CVE Database