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Sungwoo Lee

Hands-on guides on AI tools and prompting — ChatGPT, Claude, Perplexity, and more. I test the tools and write what actually works, at Tangents → https://my-blog.org/tangents

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Which AI Model Should You Use? A Routing Guide for Developers
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Which AI Model Should You Use? A Routing Guide for Developers

#ai #chatgpt #productivity #beginners
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5 min read
Best AI Agents in 2026: What They Do and How to Pick One
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Best AI Agents in 2026: What They Do and How to Pick One

#ai #machinelearning #programming #productivity
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6 min read
AI Agents vs Chatbots: What's the Actual Difference
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AI Agents vs Chatbots: What's the Actual Difference

#ai #chatgpt #beginners #tutorial
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5 min read
How to Build an AI Agent Without Writing Code
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How to Build an AI Agent Without Writing Code

#ai #automation #tutorial #beginners
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5 min read
System Prompt vs User Prompt: What's the Difference?
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System Prompt vs User Prompt: What's the Difference?

#ai #chatgpt #programming #beginners
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5 min read
Role Prompting Explained: How AI Personas Actually Work
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Role Prompting Explained: How AI Personas Actually Work

#ai #chatgpt #programming #beginners
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5 min read
Prompt Chaining Explained: Break Big AI Tasks Into Steps
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Prompt Chaining Explained: Break Big AI Tasks Into Steps

#ai #chatgpt #programming #productivity
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5 min read
Fine-Tuning vs Prompt Engineering: A Developer's Decision Framework
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Fine-Tuning vs Prompt Engineering: A Developer's Decision Framework

#ai #machinelearning #programming #chatgpt
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5 min read
What Is an AI Agent? Agentic AI Explained for Developers
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What Is an AI Agent? Agentic AI Explained for Developers

#ai #agentic #programming #tutorial
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4 min read
What Is a Context Window? Token Limits Explained for Developers
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What Is a Context Window? Token Limits Explained for Developers

#ai #machinelearning #programming #beginners
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4 min read
What Is RAG (Retrieval-Augmented Generation)? Explained for Developers
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What Is RAG (Retrieval-Augmented Generation)? Explained for Developers

#ai #machinelearning #programming #tutorial
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4 min read
What Is MCP (Model Context Protocol)? A Developer's Explainer
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What Is MCP (Model Context Protocol)? A Developer's Explainer

#ai #mcp #programming #tutorial
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4 min read
How to Stop AI Hallucinations: 6 Prompt Tactics That Reduce Made-Up Answers
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How to Stop AI Hallucinations: 6 Prompt Tactics That Reduce Made-Up Answers

#ai #chatgpt #productivity #writing
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4 min read
What Is Prompt Engineering? A Plain-English Guide for Anyone Using AI
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What Is Prompt Engineering? A Plain-English Guide for Anyone Using AI

#ai #chatgpt #productivity #writing
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4 min read
How to Write Better AI Prompts: The 5 Principles That Actually Work
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How to Write Better AI Prompts: The 5 Principles That Actually Work

#ai #chatgpt #productivity #writing
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4 min read
Few-Shot Prompting Explained: Teach AI With Examples (With Templates)
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Few-Shot Prompting Explained: Teach AI With Examples (With Templates)

#ai #chatgpt #productivity #writing
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5 min read
20 ChatGPT Prompts for Work That Actually Save You Time
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20 ChatGPT Prompts for Work That Actually Save You Time

#ai #chatgpt #productivity #writing
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8 min read
Chain-of-Thought Prompting, Explained (with the Research Behind It)
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Chain-of-Thought Prompting, Explained (with the Research Behind It)

#ai #machinelearning #chatgpt #productivity
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3 min read
Perplexity AI Review: Is It Worth It in 2026?
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Perplexity AI Review: Is It Worth It in 2026?

#ai #productivity #research #tools
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3 min read
Best AI Coding Assistants Compared (2026): Copilot, Cursor, Claude Code & ChatGPT
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Best AI Coding Assistants Compared (2026): Copilot, Cursor, Claude Code & ChatGPT

#ai #programming #productivity #tools
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3 min read
ChatGPT vs Perplexity: Which AI Tool Actually Wins for Research?
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ChatGPT vs Perplexity: Which AI Tool Actually Wins for Research?

#ai #chatgpt #productivity #research
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4 min read
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