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Language models

System prompt

Level 2

Hidden instructions that set a model's role and rules before you type anything.

Term 8 of 8 in Language models

In plain language

Every AI product includes a system prompt the user never sees. It sets the persona, the boundaries and the format. Your message is added after it.

Think of it like this

The stage directions an actor reads before the audience arrives.

Why it matters

Much of what feels like a model's "personality" is really the system prompt of the product you happen to be using.

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