News Summary

• Anthropic PBC is widely releasing a version of Mythos that will be blocked from carrying out cybersecurity tasks.
• 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.
• 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 ofMythos called Mythos 5.