Introducing Claude Fable 5.2 on AWS
What happened
Anthropic released two new AI models, Claude Fable 5.2 and Claude Mythos 5.2, making them available on Amazon Bedrock and the Claude Platform on AWS. Fable 5.2 is designed to handle complex coding, mathematical, and scientific tasks, while Mythos 5.2 is intended for advanced cybersecurity and life sciences projects under specific verification programs. Both models can now be accessed by users with the necessary AWS credentials and permissions. The launch includes new features for data retention and safety review, as well as migration tools for teams upgrading from previous Claude models.
Key details
- Claude Fable 5.2 is available on Amazon Bedrock and Claude Platform on AWS.
- Mythos 5.2 access requires participation in Anthropic’s verification programs.
- Fable 5.2 can run unattended for hours or days and verifies its own output.
- Enterprise Frontier Safeguards allow zero data retention for eligible customers through June 30, 2027.
- Teams can use the claude-api skill in Claude Code to migrate existing Claude model codebases to Fable 5.2.
Why it matters
Organizations using AWS for technical, scientific, or security work can now access more advanced AI capabilities directly through Amazon Bedrock. Teams working in regulated or sensitive areas benefit from new data retention options and safety reviews, which may affect compliance and privacy requirements. Existing Claude users on AWS have tools to upgrade their systems, reducing migration effort and enabling faster adoption of the new models.