TekFinch
Beginner Guide

Beginner Guide

Blogs written in the “Beginner Guide” format.

Deepfakes, Demystified: How They Get Made and How to Actually Catch One
AI Safety & Literacy

Deepfakes, Demystified: How They Get Made and How to Actually Catch One

Your eyes alone won't catch a good deepfake anymore. Here's a straight explanation of how these things get built, and the verification habits that hold up far better than staring closely at the footage.

TekFinch TeamAugust 23, 20266 min read
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Picking an Everyday AI Chatbot: A Practical Way to Decide
AI Tools & Apps

Picking an Everyday AI Chatbot: A Practical Way to Decide

AI chatbots aren't interchangeable - each one leans toward different strengths. Here's a practical framework for matching a chatbot to what you actually plan to use it for.

TekFinch TeamAugust 20, 20266 min read
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What RAG Really Involves (It's More Than "Connect Your Data")
AI for Developers

What RAG Really Involves (It's More Than "Connect Your Data")

Retrieval-Augmented Generation gets pitched as plug-and-play - hook up your data, get grounded answers. Here's the actual mechanics, and the specific spots where real implementations trip up.

TekFinch TeamJuly 14, 20267 min read
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Why Your AI Chat "Forgets" Things: Tokens and Context Windows Explained
AI Explained

Why Your AI Chat "Forgets" Things: Tokens and Context Windows Explained

Your AI assistant hasn't stopped listening - it simply ran out of space. A no-jargon look at tokens and context windows, plus three habits that work around the ceiling.

TekFinch TeamJuly 1, 20266 min read
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Fine-Tuning or Prompting? Two Ways to Shape How an AI Model Behaves
Generative AI

Fine-Tuning or Prompting? Two Ways to Shape How an AI Model Behaves

Trying to get an AI model to behave the same way every single time? There are two genuinely different paths there - tweak your prompt, or retrain the model outright. Here's how to tell which one you actually need.

TekFinch TeamJune 18, 20266 min read
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Talking to Kids and Teens About AI: A Real-World Family Guide
AI Safety & Literacy

Talking to Kids and Teens About AI: A Real-World Family Guide

Kids and teens are already leaning on AI for homework, chat, and just about everything they watch or read. Here's a practical, age-by-age guide to raising kids who actually understand AI, instead of just handing down rules about it.

TekFinch TeamJune 8, 20267 min read
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Supervised vs. Unsupervised Learning: Where the Line Actually Falls
AI Explained

Supervised vs. Unsupervised Learning: Where the Line Actually Falls

Two fundamentally different ways an AI model can learn from data - one needs labeled examples handed to it, the other has to find its own structure. Here's the plain-terms version of what splits them apart.

TekFinch TeamJune 1, 20265 min read
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AI, Machine Learning, Deep Learning: Untangling What Separates Them
AI Explained

AI, Machine Learning, Deep Learning: Untangling What Separates Them

These three phrases get tossed around as if they're interchangeable, but they actually describe three nested, distinct ideas. Here's a clear-eyed look at what each one means and how they fit together.

TekFinch TeamMay 20, 20265 min read
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Tokens, Rate Limits, and Cost: How AI API Pricing Actually Works
AI for Developers

Tokens, Rate Limits, and Cost: How AI API Pricing Actually Works

How AI API billing really works under the hood - tokens, throttling limits, and the details that make one integration far pricier than another - so you're not blindsided by the invoice.

TekFinch TeamApril 21, 20266 min read
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What Really Happens to the Stuff You Type Into an AI Chatbot
AI Safety & Literacy

What Really Happens to the Stuff You Type Into an AI Chatbot

Drop something sensitive into an AI chat window and it doesn't just vanish after you get your answer. Here's where that text actually ends up - storage, model training, and the questions worth asking about any tool you use regularly.

TekFinch TeamApril 14, 20266 min read
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What Is a Large Language Model? A Plain-English Explanation
AI Explained

What Is a Large Language Model? A Plain-English Explanation

Skip the jargon and the equations - here's what a large language model is, how it picked up the ability to write, and what that word "large" is actually referring to.

TekFinch TeamApril 8, 20266 min read
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From Text to Image: How Diffusion Models Turn Words Into Pictures
Generative AI

From Text to Image: How Diffusion Models Turn Words Into Pictures

The idea powering most AI image generators, laid out with zero math: begin with random noise, then gradually scrub it clean into a picture that matches whatever you typed.

TekFinch TeamMarch 31, 20266 min read
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Neural Networks, No Math Required: How Machines Spot Patterns
AI Explained

Neural Networks, No Math Required: How Machines Spot Patterns

What a neural network actually is, laid out through everyday comparisons instead of formulas - and why the whole trick comes down to "layers."

TekFinch TeamMarch 27, 20266 min read
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Prompt Structure 101: What Actually Makes a Prompt Work
Generative AI

Prompt Structure 101: What Actually Makes a Prompt Work

A fuzzy prompt gets you a fuzzy answer, every time. Here's a hands-on breakdown of the four ingredients that separate a prompt that lands from one that doesn't, complete with before-and-after rewrites.

TekFinch TeamFebruary 18, 20266 min read
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How AI Actually Writes Music - and Where It Still Comes Up Short
Generative AI

How AI Actually Writes Music - and Where It Still Comes Up Short

Type a description and AI hands back a full song. Here's a plain-English walk-through of the mechanics behind that, plus an honest look at what these tools nail and what still trips them up.

TekFinch TeamFebruary 15, 20266 min read
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AI Bias, Unpacked: Why Models Get Certain Things Wrong on Purpose
AI Safety & Literacy

AI Bias, Unpacked: Why Models Get Certain Things Wrong on Purpose

A biased model isn't holding an opinion - it's repeating a pattern baked into whatever it was trained on. Here's a plain-language walkthrough of where that pattern comes from and how it actually shows up.

TekFinch TeamFebruary 5, 20266 min read
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What Actually Happens the Moment You Send an AI Prompt
AI Explained

What Actually Happens the Moment You Send an AI Prompt

From your keystrokes to the words appearing on screen - a step-by-step look at everything that happens between hitting "send" and an AI chat tool answering back.

TekFinch TeamJanuary 23, 20266 min read
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