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A comment on Claude Fable 5.2 and Mythos 5.2.

Re:Claude Fable 5.2 and Mythos 5.2 by stroebs on Monday November 09, 2026 @03:27PM (#50431536)
> Claude Mythos 5.2 is our most capable model for cybersecurity engineering. It catches more vulnerabilities than our previous models, and is better at reproducing and fixing them (note that Claude Fable 5.2’s safeguards will block most cybersecurity-related tasks).

Why even rank Fable 5.2's capability in Cybersecurity if you won't allow us to use it for that?

[ Parent | on HN ]
Re:Claude Fable 5.2 and Mythos 5.2 by xiaoyu2006 on Monday November 09, 2026 @03:31PM (#50431608)
To emph the need to block Chinese competition.
[ Parent | on HN ]
Re:Claude Fable 5.2 and Mythos 5.2 by gizmodo59 on Monday November 09, 2026 @03:33PM (#50431636)
Why you think you are the market for that? Its few enterprises only
[ Parent | on HN ]
Re:Claude Fable 5.2 and Mythos 5.2 by stroebs on Monday November 09, 2026 @03:36PM (#50431691)
Blue-team exercises are totally valid, and requests to do proactive cybersecurity tasks even with source code available were blocked. Maybe these use-cases are part of the "55% fewer blocks with Fable 5.2 compared with Fable 5.1"
[ Parent | on HN ]
Re:Claude Fable 5.2 and Mythos 5.2 by peddling-brink on Monday November 09, 2026 @03:35PM (#50431682)
Presumably for those in the CVP that can use those capabilities, and general notoriety. US gov is using at full strength too.
[ Parent | on HN ]