Ultimate Guide to ChatGPT in 2026 (Updated for ChatGPT 6 Astra)
*Free ChatGPT guide:* https://clickhubspot.com/4qis ChatGPT has changed more in the last six months than most people realize, and this complete ChatGPT tutorial for 2026 shows you how to use it the right way today. I walk you through the entire app, starting with the free plan and then moving into the paid features that make the biggest difference. You will learn how thinking mode and the model picker work, how to set up memory and custom instructions, and why Projects are the best way to organize your work. I also show you ChatGPT Work, where an AI agent delivers finished reports and documents, plus data analysis with the new Astra model in ChatGPT 6. Finally, we cover ChatGPT Skills, plugins, image generation and editing, deep research, ChatGPT Sites, and agents. Chapters 0:00 What Changed in ChatGPT 2:17 Free vs Paid: Think Mode and Model Picker 4:11 Memory and Custom Instructions 5:47 Temporary Chat 6:16 ChatGPT Projects 9:08 ChatGPT Work 10:30 Choosing Models and Reasoning Effort 11:19 Data Analysis with Astra 12:27 ChatGPT Skills vs GPTs 13:03 Plugins and Connected Apps 14:24 How to Create a Skill 15:54 Image Generation and Editing 17:18 Deep Research 18:25 Branch Chats and Slash Commands 19:03 Voice Mode 19:15 ChatGPT Sites 19:54 ChatGPT Agents 20:48 Wrap Up