via The Verge AI
Anthropic’s Mythos 5 Returns—But Fable 5 Remains Elusive
Anthropic has quietly revived its advanced deep-reasoning model, Mythos 5, though access remains tightly controlled. In early 2026, the Trump administration approved a select group of government-affiliated researchers and defense contractors to use the model for high-stakes applications such as strategic planning and advanced data analysis. Meanwhile, the long-awaited Fable 5—Anthropic’s next-generation consumer-facing AI—has yet to materialize, leaving enthusiasts and enterprise clients waiting. The return of Mythos 5, originally unveiled in late 2024, signals Anthropic’s continued focus on safety-critical AI deployments before releasing more broadly available tools. Industry watchers speculate that Fable 5’s delay may stem from ongoing alignment research and regulatory reviews under the new administration’s AI framework.