Claude Fable 5 — public release of Mythos

Anthropic released Claude Fable 5 — the first public Mythos release.

The model excels at software development, knowledge tasks, and vision. In high‑risk domains (cybersecurity, biology, chemistry, distillation) outputs are blocked and routed to Opus 4.8. Available via API and enterprise plans; temporarily included in subscriptions until 22 June, then paid with credits. Mythos 5 accessible to approved organizations.

Anthropic ran jailbreak stress tests and enforces 30‑day traffic retention for protection; they pledge not to use data for training. Priced at twice Opus; independent tests report high accuracy on complex tasks.

Why it matters: the mix of model power and mandatory safeguards could set an industry precedent. Is paying for such constraints and the data‑retention risk worth it?

#AI #Anthropic #Cybersecurity #Technology