Anthropic Releases Mythos-Like Model Without Cyber Capabilities

Anthropic PBC is widely releasing a version of Mythos that will be blocked from carrying out cybersecurity tasks, months after warning that the powerful artificial intelligence model could spot and exploit vulnerabilities in critical software.

The new model, called Fable 5, is set to be rolled out on Tuesday with guardrails that prevent it from responding to certain types of queries, including those related to cybersecurity and biology. In those cases, Anthropic said its Claude chatbot will route responses through a different model called Opus 4.8.

Anthropic is also releasing the same model, without some of the safeguards, as a new version of Mythos called Mythos ...