Anthropic:

Anthropic says Fable 5 uses conservative safety classifiers that trigger a fallback to Claude Opus 4.8 in ~5% of sessions, in areas like cybersecurity  —  Today we're launching Claude Fable 5: a Mythos-class1 model that we've made safe for general use.  —  Fable 5's capabilities exceed …

Anthropic:

Anthropic says Fable 5 uses conservative safety classifiers that trigger a fallback to Claude Opus 4.8 in ~5% of sessions, in areas like cybersecurity  —  Today we're launching Claude Fable 5: a Mythos-class1 model that we've made safe for general use.  —  Fable 5's capabilities exceed …

Source: TechMeme
Source Link: https://www.techmeme.com/260609/p31#a260609p31