I'm using a Mac to do bulk diarized transcription (STT). Most services run in the $.05-1.00+ per hour of transcribed audio.
My Mac can do ~200x realtime (1 hour takes 20s or so). I can do several thousand hours per day. Its pretty incredible
Not sure how much that qualifies as AI vs LLM usage, but it seems to work pretty good
What are you using for this? We tried this a few years back, could simply not find a good diarization engine.