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Ch. 001 — AI, explained fastEst. 2026 / YouTube

The Context Window

What the models can do, which one is actually best right now, and what to ignore. No hype. Small window, big signal.

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/ 01 — what is this

Every AI model has a context window. It's everything it can see at once. This channel is ours: fast, honest videos about models, tools and the stuff that actually matters — so your window stays full of signal, not noise.

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/ 02 — try it

The window
has limits.

Type anything. Each word becomes a token in the window. Shrink the window and watch the oldest ones get forgotten. That's every chatbot, every time.

Context window0 / 24 tokens · 0 forgotten
Window size24
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/ 03 — your turn

Fill your
window.

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