Enterprise TechAIAI NewsBlogTechnologyClaude Fable 5: Anthropic Launches Mythos-Class Autonomous AI By astradef.ai No Comments on Claude Fable 5: Anthropic Launches Mythos-Class Autonomous AI June 10, 2026 4 Min Read Anthropic has released Claude Fable 5, the first generally available Mythos-class AI model. Discover Fable 5's long-horizon autonomy, self-verification, and features.