Understand it in 10 seconds
A prompt is the input you give an AI to guide what it should do.
In plain language
A prompt is the input you give an AI to guide what it should do. This describes what the model or system does, not a promise that every product behaves identically.
An analogy
It is a brief for the AI: the job, context, constraints and desired format can all go in it.
The analogy is a shortcut, not a complete technical definition.
An everyday example
Where you will encounter it
You use prompts in chat boxes, API requests and AI features inside other apps.
Should you care?
Yes. Clear goals, context and constraints usually matter more than magic wording.
How it differs
A user prompt is your current request. A system prompt sets higher-level behavior for the model or product.
Related Terms
Related terms
Continue with these published explanations.
Sources & last checked
Checked against official documentation. Editorial recommendations are distinguished from vendor positioning; no runtime benchmark was performed.
Official documentation
01Last checked: September 5, 2026
official-docs