Anthropic has introduced Claude Fable 5, a powerful new AI model designed for broad enterprise use, alongside the more restricted Claude Mythos 5, which remains available only to vetted users in cybersecurity and biology. Fable 5 offers superior performance across software engineering, knowledge work, vision, scientific research, and long-term tasks, outperforming previous models and beating benchmarks significantly. For sensitive requests in cybersecurity, biology, or model distillation, Fable 5 automatically routes queries to a less capable model to enhance safety. Pricing for both new models is set at $10 per million input tokens and $50 per million output tokens, making them among the most expensive AI services globally. Enterprises benefit from Fable 5’s enhanced autonomous coding capabilities, notably enabling more complex tasks like codebase migrations and app prototyping. The rollout includes availability via API and subscription plans with a planned shift to usage credits after an initial free period. Mythos 5 serves high-risk sectors with fewer restrictions, supporting advanced cybersecurity and biological research workflows. Anthropic’s data retention policies require 30-day storage for all usage data, balancing capability with security. This release marks a strategic move toward commercializing highly autonomous AI systems with controlled access to sensitive capabilities.
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