Somewhat is key. You can try to guide it in a direction, but that’s it. Also, as a player, you can never be sure if the dialogue is meaningful or not. Does it reveal something about the plot? Is it a key information about the character? Is it just hallucinated gibberish to fill the space?
You can control what it spits out, though. They already do somewhat.
Edit: Gonna go out on a limb and assume most of you haven’t actually played any of the projects currently doing this. Or mess with chatbots at all.
Somewhat is key. You can try to guide it in a direction, but that’s it. Also, as a player, you can never be sure if the dialogue is meaningful or not. Does it reveal something about the plot? Is it a key information about the character? Is it just hallucinated gibberish to fill the space?