ReleaseBytes
aws AWS What's New ·

AWS announces Claude Fable 5, a generally available AI model

aiawsgapreviewengineer
feature announcement

AWS has made Claude Fable 5, a state-of-the-art Mythos-class AI model, generally available. This model offers enhanced autonomous knowledge work and coding capabilities for developers and enterprises building AI applications. Claude Fable 5 is designed for professional tasks across various industries and can be accessed via Amazon Bedrock or the Claude Platform on AWS. Amazon Bedrock offers AWS-managed features and data residency, while the Claude Platform provides direct Anthropic access with unified billing.

  • Claude Fable 5 model now generally available on AWS
  • Mythos 5 model available in preview for select customers
  • Access options: Amazon Bedrock and Claude Platform on AWS
Features (2)
  • Claude Fable 5 model now generally available on AWS

    Claude Fable 5, a Mythos-class AI model with advanced capabilities for autonomous knowledge work and coding, is now generally available. It is designed for professional tasks across finance, legal, marketing, sales, data, and engineering, featuring proactive skill updates and self-verification.

  • Mythos 5 model available in preview for select customers

    The Claude Mythos 5 model, which excludes safety classifiers, is accessible to a limited group of customers currently participating in the Claude Mythos Preview.

Notes (1)
  • Access options: Amazon Bedrock and Claude Platform on AWS

    Customers can access Claude Fable 5 through Amazon Bedrock, which integrates with AWS infrastructure and features like Guardrails and Knowledge Bases, or through the Claude Platform on AWS for direct Anthropic access with unified AWS billing and authentication.

Read the original announcement →

https://aws.amazon.com/about-aws/whats-new/2026/06/claude-fable-5-aws/