Don't use the term AI if you mean old school AI. Calling them robots fully does the job. As it would have done 10 years ago. That robots have artificial whatever is implicit. They are robots. They are not remote controlled automatons.

Otherwise you confuse people, because they hear "AI" all day long with the meaning of generative large language models. Or maybe I am mistaken and you did incorporate some of the newly fangled AI into this.

The friendly robot is a gimmick. Having a voice giving input to the player, giving warnings, or tell jokes is seen regularly. Putting that voice into an avatar is not a bad idea. I suggest you enhance this with clever puzzle mechanics where you need the extra pair of hands, or other ways to utilize the robot beyond doing what a voice over a communication device or a narrator could do.