shapesinfinity.
Learn AI · Beginner · 3 min

Open Source vs Closed AI Models

Can you see how an AI thinks, or is it locked away?

Open vs Closed Model Flow
Training dataOpen: code visibleClosed: code hiddenAnyone can useOnly paid accessRisk: misuse possible

Left path: open source shows code. Right path: closed keeps code secret.

goes inthe AI workscomes outwatch out

In simple words

Open source is like a recipe anyone can read and change. Closed source is like a secret recipe only the company knows.

The real definition

Open source models let anyone see and modify the code. Closed models keep their code private and charge for use.

Like… Recipe Book Comparison

Open source is a cookbook in the library. Everyone reads recipes and adds new ones. Closed source is a restaurant's secret formula only staff know.

But: Real AI needs computers and money to run. Recipes do not.

You see it every day

on your phone

Open Chatbot on Phone

You download Llama and run it on your own device.

out in the world

Closed AI in the World

You use ChatGPT through OpenAI's website. You never see the code.

at work

Company Uses Closed Model

A bank pays Google to use closed AI to check fraud.

Step by step

  1. 1

    Choose Model Type

    Decide if you want visible code or private code.

  2. 2

    Access the Model

    Download open source or pay for closed source API.

  3. 3

    Use the AI

    Run or call the model to get answers.

  4. 4

    Check Limits

    Open: free but you fix bugs. Closed: paid but company fixes it.

  5. 5

    Make Your Choice

    Pick based on cost, control, and trust you need.

Remember

Open source: you see and change the codeClosed source: company keeps code secretOpen: free but harder. Closed: easy but costs moneyOpen: community helps find bugs fastClosed: company promises safety and support

Memory trick

Open = glass house (see inside). Closed = black box (mystery inside).

Words

open source OH-pen SOR-ss
Code you can see, use, and change freely.
closed source KLOZD SOR-ss
Code the company keeps private and does not share.
model MAH-dul
A trained AI program that gives answers.
API AY-pee-eye
A connection tool you use to access the AI.
code KOHD
Instructions written by humans that tell computers what to do.
community kuh-MYOO-nuh-tee
Many people working together on one project.
training data TRAY-ning DAY-tuh
Examples and information used to teach an AI.

Check yourself

quick check

What is the main difference between open and closed models?

Hint

Think about what you can see.

quick check

You want free AI but do not mind fixing small bugs yourself. Which should you pick?

Hint

What is free and lets you change things?

think

Why might a company choose closed source over open source?

Show a good answer

Companies like closed source because they control it and protect secrets. They also make money from it and offer customer support.

Tell a friend

“Open source AI is free but needs your help. Closed source costs money but someone helps you.”

People also ask

Is open source AI always free?

Yes, open source code is free to download and use. But you may pay for computer power to run it.

Can I change a closed source model?

No. Closed source models are owned by companies. You can only use them as they are.

Which is safer, open or closed?

Closed models often have company support and safety checks. Open models are checked by many people but need more care.