Glossary › LLM

System Prompt

Hidden instruction at the start of a conversation that defines the model's persona, rules, and behavior. Not visible to the user. Critical for safety, formatting, and role-playing.

Where this is taught

Related terms

Prompt Engineering · Guardrails

More in LLM

Hallucination · Temperature · Token · Context Window · Top-p (Nucleus Sampling) · In-Context Learning · Function Calling

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