Master GPTs: How to master custom GPTs & Projects

Jul 11, 2025

In this hands-on session, AI Operator CEO Tim Cakir shows you how to build smarter, more effective Custom GPTs and organize your work with Projects inside ChatGPT.

Whether you’re creating a marketing strategist, content assistant, or internal knowledge bot, this session walks you through the exact steps to get the most out of GPTs—plus a few advanced tricks most people don’t know.

🔍 What we cover:

  • What Custom GPTs are and when to use them

  • Beginner vs. advanced modes for GPT creation

  • How to write effective instructions (with a 5-part structure)

  • Model selection: When to use o3, 4.0, 4.5, or o3 Pro

  • Using knowledge files and document formatting tips

  • Integrating APIs via Actions (e.g., Google Analytics, HubSpot)

  • Using Projects to organize conversations and context

  • A voice mode workaround using Projects

  • Pro tips on @mentions, memory, and desktop vs. web app features

This session is ideal for founders, operators, and anyone who wants to make ChatGPT a powerful, reliable part of their workflow.

Tim Cakir
CEO & Founder