Amouranth is running one of these for fans at a rate of $1/minute [1, 2]. Supposedly already raking in money.
With that example, the flood gates are about to open.
[1] https://kotaku.com/twitch-streamer-kaitlyn-amouranth-siragus...
[2] https://www.polygon.com/23733515/amouranth-ai-chatbot-foreve...