Setting Up ChatGPT

Go to chat.openai.com and sign up with Google, Microsoft, or email. The free tier gives you access to GPT-4o mini and limited GPT-4o access — more than enough to learn.

Once logged in, you'll see a simple chat interface. Type a message, press Enter, and ChatGPT responds. That's it — no complex setup required.

Chat area — Where your conversation happens. Each conversation is separate.
New chat — Start a fresh conversation with no prior context.
History sidebar — All your past conversations, searchable.
Model selector — Switch between GPT-4o, GPT-4o mini, and other available models.
Attachments — Upload images, PDFs, or files for the AI to analyze.
Custom instructions — Set persistent preferences that apply to all chats (Settings → Personalization).

Start with these to get a feel for what ChatGPT can do:

1. Ask a question: "What are the three most important things to know about prompt engineering?"
2. Request a task: "Write a professional email declining a meeting invitation politely"
3. Analyze something: Upload a screenshot or paste text and ask "What could be improved here?"
4. Get creative: "Give me 5 unique business ideas that combine AI with the fitness industry"

Notice how the quality of the response depends heavily on how specific your prompt is. We'll dive deep into this in the Prompt Engineering modules.

Before going further, configure these settings:

Custom Instructions (Settings → Personalization): Tell ChatGPT about yourself and how you want it to respond. Example: "I'm a marketing professional. Give me practical, actionable advice. Be concise — skip obvious caveats."

Memory (Settings → Personalization): Enable memory so ChatGPT remembers facts about you across conversations.

Data Controls (Settings → Data Controls): Decide whether your conversations are used for model training. Turning this off gives you more privacy but doesn't affect functionality.