GEN AI LESSON
Tokens and the Context Window
Text splits into tokens; only recent tokens plus instructions fit in the sliding window.
Paste summaries instead of giant logs unless needed.
Assuming the model read everything you typed last month.
Read this next
Welcome to Tokens and the Context Window. You are in the Mindset & Mechanics arc—bite-sized, playful, but serious about accuracy.
Big picture:
Text splits into tokens; only recent tokens plus instructions fit in the sliding window.
Try this flow: skim → jot one surprised question → tackle the three quick checks below.
Coach tip: Paste summaries instead of giant logs unless needed.
Avoid: Assuming the model read everything you typed last month.
Practice angle: Describe how token limits change how you plan study sessions with AI.
Below are three micro-check questions. Answer each one correctly, tap Finish topic, and the next lesson unlocks.
Quick checks
Three tap-only questions tied to this lesson. Get each one right once, then press Finish to unlock the next topic—nothing is sent to an AI API from this page.