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System Prompt Builder
Generate a clean, professional system prompt from the proven Role · Context · Task · Format · Constraints framework. Works for ChatGPT, Claude, Gemini and open-source models.
Generated system prompt
Fill in the fields to build your prompt…
Based on the 5-part framework (Role · Context · Task · Format · Constraints) taught in our Prompt Engineering course.
Frequently asked questions
What makes a good system prompt?
A strong system prompt defines five things: the role the AI should adopt, the context it needs, the specific task, the output format, and hard constraints. Missing any of these is the most common cause of vague AI output.
Does this work for Claude and Gemini too?
Yes. The five-part framework is model-agnostic and works across ChatGPT, Claude, Gemini, Grok and open-source models. Claude tends to follow long nuanced instructions particularly well.