what LLM are you using? That has a big effect

I am using "VAPI" model because I think it is the only allowed model if you use Workflows beta feature https://cdn.discordapp.com/attachments/1362054638211170515/1362064271768289531/image.png?ex=680108b4&is=67ffb734&hm=ae17c6dde57a772fd15864f8c6f816e452da6734e1ae3ea0533295ea54351e5a&