What is User Prompt?

User Prompt is the instruction or question provided by a user to an AI system. User Prompt content determines the task, constraints, and context available to the model.

Quick definition

User Prompt is what a person types or says to ask an AI system for an answer.

How User Prompt works

  • User Prompt provides the immediate task and context for an LLM answer.
  • User Prompt wording can change query intent interpretation and output structure.
  • User Prompt interacts with system prompt rules and constraints.
  • User Prompt variants are often tested in AI prompt testing.

Why User Prompt matters

User Prompt matters because small changes in phrasing can change answers, citations, and ranking.

User Prompt is central to prompt monitoring and prompt tracking workflows.

Example use cases

  • Comparing two prompt variants that differ only in constraints.
  • Building a prompt set that represents real user queries.
  • Tracking prompt visibility for a set of high-intent user prompts.

Related terms