Anthropic Mythos is limited to a small group of users, but the company said its Fable 5 model has similar capabilities but with safeguards.
Anthropic Releases 'Mythos Class' AI Model As Mega-Startup Preps IPO
Licensing
02:56 PM ET 06/09/2026
Anthropic launched a "Mythos class" model Tuesday, which the AI startup said has been designed to be safe for general use. The release of Claude Fable 5 comes two months after Anthropic previewed a powerful Mythos model that it warned could pose cybersecurity risks. Fable 5 is the most capable model Anthropic has made generally available, the company said. "Releasing…
Anthropic releases Mythos-like AI model to the public two months after private rollout rocked Wall Street
Anthropic releases its first Mythos-class model to the public | Fortune
Anthropic makes Mythos model available to users through safer Claude Fable 5 release
Anthropic releases Fable 5 model, built on the same tech that spooked the government
Anthropic releases Claude Fable 5, a 'Mythos-class' AI model with safeguards
Anthropic launches powerful Fable 5 model publicly, while keeping Mythos restricted over cybersecurity concerns
Anthropic finally offering its Mythos AI model to the public
Anthropic releases Claude Fable, a version of Mythos, days after warning AI is becoming too dangerous
Anthropic rolls out public version of Mythos without cybersecurity capability
Anthropic Releases a Safer Version of Its ‘Too Dangerous’ Mythos AI
Anthropic said the broad release is possible because of new safeguards that block responses in specific high-risk areas.
Anthropic first announced Mythos in April, which it called a "step change" in capabilities, but opted to tightly control its…
Anthropic launched Claude Fable 5 with safeguards for high risk tasks while limiting Mythos 5 to trusted cyber partners.
The leading AI company says the new model is similar to the Mythos model previewed in April but safe for general use.
Anthropic said it could not yet release the full Claude Mythos 5 model, so instead it created Fable 5 with baked in safeguards.
Mythos has already shown what it can do when it is not heavily restricted. Since April, when an earlier preview was sent to about…
