Summary
Creator and product veteran Peter Yang walks through a comprehensive beginner’s guide to ChatGPT Work and Codex, OpenAI’s desktop AI environment built on GPT-5.6. The tutorial demystifies the distinction between Chat, Work, and Codex modes — largely a UI difference, with Codex adding a pull requests view for developers — and breaks down GPT-5.6’s three model variants: Soul, Terra, and Luna, each with five effort levels. Yang recommends Soul at medium effort as the practical sweet spot for most tasks, balancing intelligence against token consumption.
The video demonstrates a range of real-world automations using the ChatGPT desktop app. Yang shows how to customize system instructions to shape the model’s communication style, connect Gmail and Google Calendar via extensions, and have Codex draft and send emails in the user’s personal voice. A standout workflow involves prompting Codex to analyze sent email history and generate a reusable “slash skill” — a style template the model applies to future drafts. Calendar booking is similarly automated: Codex finds available slots, detects conflicts, and creates Google Meet links without manual input.
The tutorial is aimed squarely at non-technical users making their first serious investment in AI-powered productivity. Yang covers mobile usage, project and thread organization, and teases more advanced use cases like building an AI chief-of-staff to handle ongoing communication. It serves as a practical on-ramp for anyone looking to integrate GPT-5.6 into daily work across email, scheduling, coding, and content creation.
📺 Source: Peter Yang · Published July 15, 2026
🏷️ Format: Tutorial Demo
