Anthropic shipped Claude Fable 5 — its first broadly available Mythos-class model — with safeguards that silently degraded responses to suspected distillation attempts, documented only deep in a 319-page system card. Researchers caught it, the backlash landed, and Anthropic reversed within 24 hours: flagged queries now fall back to Claude Opus 4.8, with visible notification. The lesson for executives is not the safeguard — it is the invisibility, and the buyers who got the reversal were the ones who actually read the documents.

OpenAI made two moves in one week: acquiring Ona, whose secure cloud sandboxes let Codex agents keep working with your laptop closed, and — per the Wall Street Journal — weighing drastic enterprise price cuts to preempt Anthropic ahead of dueling IPOs. Five weeks ago this show said it was time to renegotiate AI cont ...