Core Concepts
System Prompt
Definition
A special instruction given to an AI model that sets its behaviour, personality, constraints, and role for the entire conversation. System prompts are typically hidden from the end user and are set by the application developer.
In Plain English
The "secret instructions" that tell the AI how to behave. When you use a customer service chatbot, it has a system prompt saying something like "You are a helpful customer service agent for Company X. Only answer questions about our products."