10Jun2026
Models & ArchitectureNew
Claude Fable 5: Anthropic's New Flagship AI Model
Claude Fable 5 is Anthropic's flagship Mythos-class AI model, with a 1-million-token context window and agentic autonomy for long, complex tasks.
New models, tools worth trying, and enough context to understand what's happening in AI.
Optimize large-scale engineering with dynamic workflows in Claude Code, using JavaScript orchestration to manage parallel agents and durable plans.
Claude Opus 4.8 keeps $5/$25 pricing and 1M context but is 4x less likely to miss its own code flaws, and adds Dynamic Workflows for parallel agents.
Claude Opus 4.7 provides enhanced software engineering autonomy, high-resolution vision, and a new xhigh effort level for advanced professional workflows.