Beginner
For readers who are new to AI, or have only used ChatGPT in a browser. Nothing installed, every term defined.
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Set up AI for your company without leaking customer data
The one-hour setup that makes the safe way to use AI also the easy way, so your team gets the tool they want and your customer data stays out of the training set.
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Build your first software tool in Claude Code
Describe a tool out loud. Forty minutes later, open a working app in your browser. No code, no engineer, no budget.
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ChatGPT vs Claude vs Gemini: which should your company standardize on?
Three excellent models, one practical question: which one do you make the company default? The honest answer depends less on benchmarks than on what you already run and what you want AI to do.
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Is your data safe in AI?
The honest answer depends on one thing almost no one checks: which plan you are on. Consumer plans and business plans treat your data completely differently, and most leaks happen because someone…
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What is a context window?
The model's working memory: everything it can see right now, measured in tokens. If the thing it needs isn't in the window, the model doesn't ask for it. It guesses.
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What is a frontier model?
The handful of most capable AI models at the leading edge, the ones that cost hundreds of millions of dollars to train and reset the bar every few months. When the news says "the frontier," this is…
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What is adverse impact?
The legal idea that a hiring practice can be illegal even when you had zero intent to discriminate, if it screens out a protected group at a meaningfully higher rate. It is the single biggest reason…
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What is an AI agent?
An AI model put to work in a loop: it decides, takes an action, looks at the result, and repeats until the job is done. A chatbot talks and stops. An agent acts until the work is finished.
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What is an ATS?
Applicant tracking system. The software where every job application lands, gets sorted, and moves through your hiring pipeline. If you have ever posted a role and watched 300 resumes pile up…
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What is an HRIS?
Human resources information system. The system of record for your employees: payroll, benefits, time off, onboarding, the org chart. Everything about a person from the day they accept the offer to…
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What is a large language model (LLM)?
The engine inside ChatGPT, Claude, and Gemini. It predicts the next word from patterns it read across the internet. Brilliant at fluency, indifferent to truth, and that one fact is most of what a…
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What is a Claude Project?
A saved workspace inside Claude that already knows your company. You load it once with your context and your instructions, and every chat you start inside it begins smart instead of from zero.
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What is RAG?
Retrieval-augmented generation. The trick that turns an AI that knows the internet into an AI that knows your company. Every "chat with your docs" tool you have ever touched runs on it.
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What is shadow AI?
Your team is already using AI for work. Just not the AI you approved, on accounts you cannot see, with data you would never have signed off on. That gap between the AI you sanctioned and the AI they…
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What is vibe coding?
Describing software in plain English and letting an AI write it, without ever reading the code. The fastest way a non-technical CEO can get a working tool. Also the fastest way to ship something…
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10 ways a CEO can put AI to work this week
Three of every four professionals already let an AI notetaker sit in their meetings. You probably pay for ChatGPT or Claude and use it the way you'd use a smarter search box. That gap, between what…
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How to get your team to actually use AI
You gave the speech. You bought the seats. Three weeks later nobody's using it. The gap isn't access. It's adoption, and adoption follows the person at the top.
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As a CEO, where should we start with AI, and what are the highest-value use cases?
Most CEOs start in the most expensive place: a top-down strategy, an AI committee, a chatbot bolted onto the website. The highest-value move is smaller, closer to home, and you can start it this…
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Which AI releases actually matter, and which can I ignore?
The majors ship one or two notable releases a week. A public tracker has already logged more than 300 model releases in 2026, across 49-plus organizations. You feel behind every Monday. You are not.…
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Why AI sounds confident when it's wrong (and how to catch it)
Lawyers keep getting sanctioned for filing briefs full of court cases that don't exist. The AI didn't flag a single one. It wrote them the way it writes everything: fluent, specific, and dead sure.
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What is Codex?
OpenAI's coding agent. The same idea as Claude Code, wearing an OpenAI badge, and probably already bundled in the ChatGPT plan you pay for every month.
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How to talk to your team about AI
The three fears your team has and isn't saying out loud. The five conversations that handle them. And the one mistake that quietly costs you a quarter of trust.
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What is a markdown file?
A text file with a tiny bit of formatting. The format every AI tool reads natively, which is why my whole AI stack is built on it.
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What is a SQLite database?
A whole database that lives in a single file on your computer. No server. No admin. No login. The thing most agent [harnesses](/articles/what-is-a-harness) use to give your agent a memory.
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What is Granola?
The meeting recorder that turns every conversation you have into searchable [markdown](/articles/what-is-a-markdown-file) your AI can read.
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A senior analyst, baked into Excel
Install one plugin and Excel goes from a tool you fight with to a senior analyst who builds models, reads pasted images, and rewrites entire workbooks on command.