What is the difference between a system prompt and a regular prompt?

A regular prompt asks for one task in one message, such as “write a product description.” A system prompt sets rules that apply to every message in a conversation. Use a system prompt when you want the AI to act consistently every time.

Where do I paste a system prompt?

In a custom GPT, paste it into the Instructions field. In Claude, paste it into a Project’s instructions. In Gemini, paste it into a Gem’s instructions. In an API call, send it as the system message before the user’s message.

Which AI models does it work with?

The prompt is plain text, so it works with any model that accepts system instructions. This includes ChatGPT, Claude, and Gemini.

Can I edit the generated prompt?

Yes. Treat the output as a first draft. Add your business details, such as opening hours or return windows, and remove any rule that doesn’t apply.

What makes a good system prompt?

Give the chatbot one clear role and a short list of topics it handles. Write rules as direct instructions, such as “Ask for the order number first.” Say what to do when a question falls outside its scope, such as “Offer to connect the customer with our team.”

Why does my chatbot ignore parts of the prompt?

Long prompts with conflicting rules confuse models. Keep each rule short, remove rules that conflict, and test the chatbot with real customer questions after each change.

Nivon does not use your content to train AI models, its own or anyone else’s.

System Prompt Generator for AI Chatbots

Describe your business and what your chatbot should do, and get a system prompt with its role, scope, tone, and handoff rules, ready to paste.

System prompt

Your system prompt will appear here

Describe your business and chatbot, set the rules, then click “Generate System Prompt”.

How to Write a System Prompt with AI

A short description becomes a production-ready prompt.

Step 1

Describe the Business and the Job

Enter your business name, industry, and the questions the chatbot should handle. You can also start from an industry template and edit it.

Step 2

Set the Rules

Choose the tone and reply length, describe when the chatbot should hand off to a person, and list any topics it should avoid.

Step 3

Copy and Test

Copy the prompt into your chatbot or AI tool. Ask it 10 real customer questions, including ones it should refuse or hand off, and edit any section that gives the wrong result.

Overview

What Is a System Prompt?

A system prompt is the set of standing instructions an AI model follows for every message in a conversation. It sets the role, rules, and limits behind each answer. Some tools call it a system message, while ChatGPT calls its version “custom instructions”. For a support chatbot, the system prompt decides what the bot answers, how it sounds, and when it passes a conversation to a person.