Context window

Think of it as the AI's short-term memory inside a single chat. Everything you've typed and everything it's said in this conversation lives in that window.

When the conversation gets very long, the oldest messages quietly fall out the back. That's why a chat that started sharp can drift after an hour.

Practical takeaway

• Long, focused project? Start a fresh chat for each new phase.
• Important context (style guide, your role, constraints)? Paste it again at the top of new chats.