Introducing Claude Fable 5.2 on AWS
Claude Fable 5.2 and Claude Mythos 5.2 are now available on Amazon Bedrock and Claude Platform on AWS. Learn what's new in both models, why Fable 5.2 matters for your technical workloads, and how to get started building with it on Amazon Bedrock.
Amazon has unveiled Claude Fable 5.2 and Claude Mythos 5.2 on AWS. Claude Fable 5.2 is Anthropic's most capable generally available model for technical tasks, including coding and scientific work. Claude Mythos 5.2 is available through Anthropic's verification programs for advanced work in cybersecurity and life sciences. Fable 5.2 excels at ambiguous, multi-step problems, verifies its own output, and can run unattended for extended periods.
It can interpret prompts, iterate, catch its own errors, and optimize as it goes. In alignment testing, Mythos 5.2 hallucinates less and completes tasks more reliably than other models. Fable 5.2 is expected to perform similarly. For cybersecurity queries, you can retry on Opus 4.8, and for biology queries, you can retry on Opus 5.
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