Anthropic's CEO recently warned that "open-source AI is heading down a very dangerous path." This sheds light on why Fable 5 and Mythos 5 were among the first models to be banned, and why they are now making a comeback. His concerns are backed by real incidents: Mythos managed to break into NSA classified systems within hours. Additionally, the Department of Commerce has weighed in on the matter, as seen in this linked post: