AWS announces Claude Fable 5, the first generally available Mythos-class model

This article announces the general availability of Claude Fable 5, AWS's first Mythos-class AI model with enterprise-grade safety features.

• Claude Fable 5 achieves state-of-the-art performance on nearly all tested benchmarks
• Enables autonomous knowledge work and coding without human intervention for extended periods
• Designed for professional tasks in finance, legal, marketing, sales, data, and engineering
• Self-updates skills, develops evaluation harnesses, and verifies work independently
• Available via Amazon Bedrock with AWS-managed features like Guardrails and Knowledge Bases
• Also accessible through Claude Platform on AWS with unified billing and authentication
• Claude Mythos 5 (unsafeguarded version) available to select preview customers

Claude Fable 5 represents a significant advancement in autonomous AI capabilities for enterprise applications, balancing powerful performance with safety safeguards.