It is interesting to consider what "jailbroken" really means for a model+model interface. It's a bit different from the way that word is used for a mobile device, for example - in that setting, it usually means that there is some specific feature (for example, using a different network than is the default for that device) which is disabled in software, and the "jailbreak" enables that feature.

Here, the jailbreak doesn't enable a particular feature, but instead removes what otherwise would be a censorship regime, preventing the model from considering / crafting output which results in a weaponized exploit of an unrelated piece of software.

I think I might be more inclined to call this "Claude 4.6 uncensored".