Most AI tools work by sending your text to someone else's servers. For a lot of tasks that is an acceptable trade. For intellectual property it often is not.
Unpublished applications, draft specifications and client portfolios are some of the most sensitive material a practice holds. The instinct to keep it in-house is the right one, and it should not mean giving up on useful software.
Models that are good enough for real work now run on hardware a firm can own. That makes a genuinely private option possible: the assistant sits next to your data, answers across it, and nothing is sent anywhere. It is the approach behind Kookaburra, and increasingly it is the one clients ask for by name.
Privacy should be the default setting, not a premium tier.