This document provides an overview of how ChatGPT can be leveraged to enhance marketing campaigns in Marketo. It discusses fine-tuning ChatGPT models with customized data to better distinguish genuine from bot leads. It also describes how to retrieve lead engagement data from Marketo, structure it for ChatGPT, and use ChatGPT's responses to optimize email send times. Additional sections discuss calculating ChatGPT token costs and considerations around data privacy when using ChatGPT.