Thanks Juan P. but I was already aware of this. I am asking what is recommended for both to get results reliably without overpaying. What have Clay users seen has worked well.
This would depend on the number words per prompt and per output, I recommend you to start with 3.5 at the lowest level for email first lines for example, try 1st 10 rows and see how it goes and depending on that you can adjust... Sorry for not being more specific, but at the end I feel that AI is all trial, error and refine...