Anthropic Claude Fable 5 on AWS: Mythos-class capabilities with built-in safeguards now available
AWS News Blog
This article announces the availability of Claude Fable 5 on Amazon Bedrock and Claude Platform on AWS, featuring Mythos-level AI capabilities with built-in safeguards.
- Claude Fable 5 delivers state-of-the-art performance in software engineering, knowledge work, and vision tasks
- Supports long-running asynchronous execution for complex, sustained tasks without intervention
- Advanced vision capabilities understand diagrams, charts, tables in files and PDFs
- Includes proactive self-verification and skill development based on learnings
- Built-in safeguards limit performance on cybersecurity, biology, chemistry, health prompts
- Harmful prompts route to Opus 4.8 instead; you pay only Opus prices for routed requests
- Requires opt-in data sharing via Data Retention API; Anthropic requires 30-day retention
- Access via Anthropic Messages API, Invoke API, or Converse API on bedrock-runtime
- Available in US East (N. Virginia) and Europe (Stockholm) regions; gradual rollout to all AWS accounts
Claude Fable 5 brings powerful AI capabilities to AWS customers with safety guardrails, enabling ambitious long-running work across multiple domains.
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