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First reported by The Verge
Anthropic releases Claude Fable 5, its first Mythos-class AI model, citing new safety safeguards

Anthropic Releases Claude Fable 5 with Tiered Safeguards for High-Risk Requests

By

CybersecurityNews

22h ago· 1 min readenNews

Summary

Anthropic has released Claude Fable 5, a Mythos-class AI model now generally available. The model features built-in safeguards that downgrade high-risk cybersecurity and biology requests to the less capable Claude Opus 4.8. The release has sparked industry debate about tiered access models, pricing strategies, and whether such models can help defenders keep pace with increasingly AI-driven cyber attacks.

Key quotes

· 2 pulled
Anthropic has made Claude Fable 5 generally available, positioning it as a powerful Mythos-class AI model with built-in safeguards that downgrade risky cybersecurity and biology requests to Claude Opus 4.8.
The release has sparked debate about tiered access, pricing, and whether models like Fable 5 and Mythos 5 will help defenders keep up with faster, AI-driven attacks.
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Anthropic has made Claude Fable 5 generally available, positioning it as a powerful Mythos-class AI model with built-in safeguards that downgrade risky cybersecurity and biology requests to Claude Opus 4.8. The release has sparked debate ab...

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