System Prompt Generator
System prompt generator
A system prompt is the standing instruction that sets an assistant's persona, tone, scope, and rules before any user message. A good one covers four things: who it is, how it speaks, what it can do, and its guardrails. Fill those in below for a clean, copy-ready system prompt.
Your system prompt
Frequently asked questions
What is a system prompt?
The persistent instruction setting an assistant's persona, tone, scope and rules before any user message. It governs the whole conversation.
How do I write one?
Define identity and purpose, tone, capabilities, and guardrails — and say what to do when unsure. Be specific and unambiguous.
System prompt vs user prompt?
The system prompt sets standing rules for every turn; the user prompt is one specific request. System prompt is written once, governs the session.