Basically what the title says. I know online providers like GPTzero exist, but when dealing with sensitive documents, I would prefer to keep it in-house. A lot of people like to talk big about open source models for generating stuff, but the detection side is not as discussed I feel.
I wonder if this kind of local capability can be stitched into a browser plugin. Hell, doesn’t even need to be a locally hosted service on my home network. Local app on-machine should be fine. But being able to host it as a service to use from other machines would be interesting.
I’m currently not able to give it a proper search but the first glance results are either for people trying to evade these detectors or people trying to locally host language models.

In general it’s a fool’s errand, I’m afraid. What’s the specific context in which you’re trying to apply this?