I read his whole thread, and if I understood it correctly (russian is not my first language), his total costs were: $1432 and 120 hours of work: https://twitter.com/biblikz/status/1752348278702641230

That being said, it sounds like, aside from when he was physically in-person with her, ChatGPT did basically all of the communication. It might even still be doing so!

All of it, though technically impressive, is super creepy.