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42 terms · 6 categories

Understand AI,
one simple term
at a time.

Stop nodding along in meetings. 101 explains every AI word in plain English — one sentence to define it, an everyday analogy to make it stick, and a quick quiz to prove you've got it.

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Abstract network of red, green and yellow glowing nodes representing AI concepts

Plain-language glossary

Definition, explanation, analogy and why it matters — for every single term.

Quizzes that stick

Five multiple-choice questions per category, scored with an explanation for each answer.

Visible progress

Track terms understood, quizzes passed and badges earned as you go.

How it works

  1. 01

    Pick a category

    Start with Basic AI, or jump to language models, agents, data, safety.

  2. 02

    Read one term

    A minute each. Save the ones you want to revisit later.

  3. 03

    Take the quiz

    Prove it stuck, see what you missed, and watch your progress fill up.

Start with these

See all 42 terms
Basic AILanguage modelsAI agentsData and databasesBuilding AI systemsSafety and privacy

Bring your own terminology list

Paste a list or upload a file and 101 writes a beginner-friendly entry for each term — definition, analogy and why it matters — straight into your glossary, with a live progress board as it works.

Import your list

Simple pricing

The glossary, quizzes and progress tracking are free forever. Pay only when you want 101 to write entries for your own terminology.

  • Free

    Most popular

    $0forever

    Everything you need to learn the language of AI.

    • Full plain-English glossary
    • Everyday analogies on every term
    • Category quizzes with explanations
    • Progress tracking and badges
    • Saved terms for revision
    Start learning free

  • Pro

    $5.97per month

    For people learning their own vocabulary, not just ours.

    • Everything in Free
    • Import unlimited terminology lists
    • AI-written entries for your own terms
    • Live import progress board
    • Priority content requests
    Import your list

  • Team

    $29per month

    Get a whole team fluent in the same words.

    • Everything in Pro
    • Up to 20 seats
    • Shared team glossary
    • Onboarding walkthrough for new hires
    • Team progress overview
    Talk to us

Get one term in your inbox

Drop your email and we'll send a single plain-English AI term each week — plus a nudge when new categories land.

One email a week · unsubscribe any time

We only add confirmed addresses to the list.

Questions, answered

Do I need any technical background?
No. Every term is written for someone who has never used an AI tool, with an everyday analogy instead of jargon.
How long does a term take?
About a minute. Read the definition, the plain-language explanation and the analogy, then mark it as understood.
Can I learn my own list of terms?
Yes. Paste or upload your terminology list and 101 writes a beginner-friendly entry for each term automatically.
Is it free?
Yes — create an account with your email and the full glossary, quizzes and progress tracking are included.

One term today beats none tomorrow.

Create a free account and start with the first term in Basic AI.

Start learning free