Même modèle, garde-fous différents : ce que révèle le lancement de Claude Fable 5 et Mythos 5

In three linesAnthropic launched Claude Fable 5 and Claude Mythos 5 on June 9, 2026—two products built on the same underlying model but differentiated by distinct safety guardrails. This strategy reveals a segmentation approach based on security controls rather than architecture.

Summary generated by Claude — human-verified