Personal Productivity in the Age of AI

Module 2 — The AI Toolkit, in Plain English

Lesson 6: Models and Context Windows — A Plain Language Tour

Last updated: 2026-05-12

Behind the assistant sits a family of models with different speeds, costs, and ceilings. Around them sits a short-term memory that fills up and degrades. Understanding both, in plain terms, is the difference between using the tool well and being puzzled by it.

Lesson 6: Models and Context Windows — A Plain Language Tour

Blackboard

A family of minds, a memory that fills

12 min
Pause and Think

When was the last time a long session with an assistant felt like it lost the thread? What happened, and how did you respond?

Practice Question

Question

Does not count for certificate
Choose one answer, use the hint if needed, then check your answer.
Use the hint before checking if you need a nudge.