---
title: "Prompt Engineering Lab — Documentation & FAQ"
description: "How to use Prompt Engineering Lab, plus answers to common questions."
canonical: "https://www.razi.pro/tools/prompt-lab/docs"
tags: ["prompt engineering", "prompt testing", "ai learning", "few-shot prompting", "chain-of-thought", "prompt patterns"]
source: "razi.pro"
---

# Prompt Engineering Lab — Documentation & FAQ

Documentation for [Prompt Engineering Lab](https://www.razi.pro/tools/prompt-lab) — Interactive prompt testing with metrics (response time, token usage, cost). Master few-shot, chain-of-thought, role-based prompting.

## Quick start

Enter a prompt, pick a technique (few-shot, chain-of-thought, etc.), and run it to see response metrics.

## Frequently asked questions

### What is prompt engineering?

Prompt engineering is the practice of designing and refining input prompts to get better, more accurate responses from AI language models. It involves techniques like few-shot examples, chain-of-thought reasoning, and role-based instructions.

### How do I use the Prompt Engineering Lab?

Enter your prompt, select a prompting technique (few-shot, chain-of-thought, role-based, etc.), and run it. The lab shows response metrics including response time, token usage, and estimated cost, helping you optimize your prompts.

### What prompting techniques are available?

The lab supports multiple techniques: zero-shot, few-shot (with examples), chain-of-thought (step-by-step reasoning), role-based (persona assignment), and more. Each technique is best suited for different types of tasks.