AI

Prompt Engineering Basics: How to Write Better Prompts for ChatGPT and LLMs

Learn how to write better prompts with proven prompt engineering techniques to improve accuracy, creativity, and reliability when using ChatGPT and other large language models.

Introduction

Large Language Models (LLMs) like ChatGPT, Claude, and Gemini can generate code, explain complex ideas, write stories, analyze data, and more. But to get high-quality, useful results, you need to master one crucial skill: prompt engineering.

This blog breaks down the core techniques of writing better prompts—whether you’re a developer, analyst, content creator, or student. You’ll learn how to craft clear, structured, and powerful prompts to get the most out of LLMs.


What Is Prompt Engineering?

Prompt engineering is the art and science of designing input instructions (prompts) to effectively communicate your intent to an AI model. Great prompts help models generate accurate, relevant, and context-aware responses.

Think of a prompt as the question or command, and the model as the collaborator. If you’re clear, the collaboration works. If you’re vague, results suffer.


Why Prompt Engineering Matters

  • Improves accuracy and relevance of responses
  • 🚀 Speeds up workflows by getting it right the first time
  • 🧠 Unlocks complex tasks like reasoning, summarization, and code generation
  • 🛠️ Reduces hallucinations and off-topic outputs

Key Principles of Effective Prompting

1. 🎯 Be Clear and Specific

Bad:

“Write about AI.”

Good:

“Write a 500-word blog post explaining how AI is used in supply chain optimization, using 3 real-world examples.”

Tip: Include scope, format, length, topic, tone.


2. 📐 Define the Output Format

Guide the model to return structured responses.

Example:

“Summarize this text into a table with columns: ‘Main Idea’, ‘Supporting Details’, ‘Example’.”

Better:

“Give me the response as bullet points under headings.”


3. 👤 Use Role Prompting

Ask the model to adopt a persona or expertise level.

Example:

“Act as a cybersecurity expert. Explain how phishing attacks work to a non-technical manager.”

This sets expectations and helps steer tone and depth.


4. 🧱 Break Down Complex Tasks

Instead of one huge ask, break it into a sequence:

Instead of:

“Write a full technical spec and code for an app.”

Do:

“First, list the key features of a budgeting app. Then write a technical spec for the top 3. Then write the backend code in Node.js.”


5. 🔁 Iterate and Refine

Ask for improvements, variations, or clarifications:

  • “Now rewrite that more concisely.”
  • “Add a comparison table.”
  • “Explain this like I’m new to the topic.”

Common Prompt Patterns

Pattern TypeTemplate Example
Instructional“Explain X to [audience] with [examples/style].”
Creative“Generate 5 story ideas about [theme] in [genre] style.”
Comparative“Compare [A] and [B] in a table with pros, cons, and use cases.”
Diagnostic“Find bugs in this code and suggest fixes: [code]”
Transformational“Convert this passive sentence into active voice.”
Step-by-step“Walk me through the process of [topic] step-by-step with reasoning.”

Advanced Techniques

🧠 Few-Shot Prompting

Show examples in your prompt:

Translate to French:
1. Hello → Bonjour
2. How are you? → Comment ça va ?
3. I’m fine → 

The model learns from your examples to complete the pattern.


🔄 Chain of Thought Prompting

Encourage reasoning:

“Let’s think step-by-step about how to solve this.”

Helps improve logical accuracy in math, programming, and planning tasks.


📋 Zero-shot vs. Few-shot vs. Fine-tuned

TechniqueDescriptionUse When…
Zero-shotNo examples, just instructionsTask is common and simple
Few-shotIncludes examplesTask has patterns or formats
Fine-tunedCustom-trained modelRepeated use at large scale

Prompting Do’s and Don’ts

✅ Do:

  • Use delimiters for clarity (""", ---)
  • Ask for assumptions to be stated
  • Iterate: ask “Can this be improved?”

❌ Don’t:

  • Give overly broad prompts
  • Assume model knows your context
  • Use ambiguous pronouns or vague terms

Prompt Engineering Tools & Resources


Conclusion

Prompt engineering is an essential skill for anyone using LLMs. Whether you’re building an app, analyzing data, writing content, or just exploring, great prompts lead to great outcomes.

Think of each prompt as a conversation blueprint: be clear, be specific, and guide the model like a collaborator. The better your prompt, the better your results.


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