Anthropic sharpens AI coding and security capabilities with Mythos 5.2

Summary

Anthropic released Claude Fable 5.2 and Mythos 5.2, which share one underlying model but have different safeguards: Fable is broadly available, while Mythos access is limited to vetted cybersecurity and life sciences organizations. Both are priced at $8 per million input tokens and $40 per million output tokens, down from $10 and $50. Mythos 5.2 identified 89.6% of vulnerabilities in Anthropic's internal CVE Rediscovery evaluation, compared with 78.3% for Mythos 5.1.

Related items

• InfoAnthropic sets price range of $70 to $78 in upcoming IPO as AI lab marches toward NasdaqSame vendor · CNBC Technology
• InfoAnthropic's Claude Fable 5.2 Beats GPT-6 Cyber in Multi-Stage Cyberattack BenchmarkSame vendor · The Hacker News
• InfoQuoting Prompting Claude Fable 5.2Same vendor · Simon Willison's Weblog
• InfoYonkers RisesSame vendor · Simon Willison's Weblog
• Infollm-anthropic 0.31Same vendor · Simon Willison's Weblog