{"topic": "Anthropic Fable Mythos 5.1 system card public model beats restricted sibling on stealth first CB-1 label", "url": "https://www.techtimes.com/articles/326285/20260903/fable-51-system-card-public-ai-tops-restricted-model-stealth-gets-bioweapons-label.htm", "created_at": 1788573726348, "request_id": "deepdive-1788573726348"}