There are a dozen names flying around — Claude, ChatGPT, Cursor, Ollama, MCP, Tailscale. This page is the map: what each one is, which ones do the same job, how they connect, and how to stay current as new tools (like Anthropic's Mythos) arrive.
You don't need all of them. You need to understand the four layers, pick one tool per layer, and know that swapping a tool later is easy. That's the whole game — and it's very winnable, at any age.
Almost every AI tool slots into one of four layers. Once you see the stack, the names stop being intimidating — they're just different products doing one of four jobs.
The actual intelligence. You rarely touch these directly — they sit behind everything else. Examples: Claude (Anthropic), GPT (OpenAI), Gemini (Google), and open models you can download like Llama, Qwen, and DeepSeek.
Where a model actually executes — either someone else's cloud (you pay per use) or your own machine with Ollama or LM Studio (free, private). Same model can run in either place.
The apps you sit in front of: chat assistants, terminal coding agents (Claude Code, Codex), and AI code editors (Cursor). These are interchangeable — they all call down to Layer 1.
What ties it together: Tailscale (a private network linking your devices) and MCP (a standard that lets any tool plug into your data and apps). This layer is where future-proofing lives.
The websites and apps you type questions into. All do the same core job; they differ in personality, price, and extras like web search or document upload.
| Assistant | Maker | Best known for |
|---|---|---|
| Claude | Anthropic | Careful reasoning, long documents, coding. The brain behind Claude Code. Full guide → |
| ChatGPT | OpenAI | The household name; huge ecosystem, image generation, voice. |
| Gemini | Tight integration with Google (Gmail, Docs, Search); generous free tier. | |
| Microsoft Copilot | Microsoft | Built into Windows and Office; uses OpenAI models. |
| Perplexity | Perplexity AI | Answers with cited sources — a research/search tool more than a chatbot. |
| Grok | xAI | Built into X (Twitter); real-time, casual tone. |
| Meta AI | Meta | In WhatsApp/Instagram; runs on the open Llama models. |
These don't just chat — they read and edit your real files and run commands to build things. This is the most powerful way to use AI, and it's what the device guides on this site install. They all install the same way (through Node) and work on every platform.
| Agent | Maker / brain | Notes |
|---|---|---|
| Claude Code | Anthropic (Claude) | The most capable agent right now. Install: npm i -g @anthropic-ai/claude-code |
| Codex | OpenAI (GPT) | OpenAI's equivalent. A strong second engine. npm i -g @openai/codex |
| Gemini CLI | Google (Gemini) | Big free allowance, huge memory. npm i -g @google/gemini-cli |
| Hermes Agent | Nous Research, any model | "The agent that grows with you" — self-improving & model-agnostic. Native on Mac/Linux, WSL2 on Windows. Setup → |
| Aider | open source, any model | Works with whichever model you point it at; popular with tinkerers. |
| Cline | open source | Runs as an agent inside the VS Code editor; bring-your-own model. |
Full applications with menus and panels, with AI built in. Same idea as the coding agents above, but in a familiar app-window form. If the terminal feels intimidating, start here.
| Editor | What it is |
|---|---|
| Cursor | The popular AI-first code editor; a fork of VS Code with a strong built-in agent. |
| Windsurf | A near-twin of Cursor; same idea, different company. |
| GitHub Copilot | AI autocomplete and chat that bolts onto VS Code and other editors. |
| Continue | Open-source AI extension; bring your own model, including a local Ollama one. |
| Zed | A fast newer editor with AI features built in. |
You can run capable models on your own hardware — no subscription, nothing leaves your house. You need a "runner" (the program) and a "model" (the downloadable brain). The runner is installed in the device guides; here's the wider field.
The runners (the program that runs models)| Runner | Notes |
|---|---|
| Ollama | The simplest and most popular. One command to run a model. What the device guides install. |
| LM Studio | A friendly app window for browsing, downloading, and chatting with local models — no terminal needed. |
| llama.cpp | The low-level engine many runners (including Ollama) are built on. For advanced users. |
| Jan | An open-source, offline ChatGPT-style desktop app. |
| Model family | From | Notes |
|---|---|---|
| Llama | Meta | The most widely used open family; many sizes. |
| Qwen | Alibaba | Very strong, especially at coding and many languages. |
| Gemma | Small, efficient open models from the Gemini family. | |
| Mistral | Mistral AI | Efficient European open models. |
| DeepSeek | DeepSeek | Strong reasoning models that made headlines for doing a lot with less. |
| Phi | Microsoft | Tiny models that punch above their weight — good for modest hardware. |
When a tool needs a cloud model, it calls an "API" — a paid doorway to the model. You usually don't see this, but it's worth knowing the names because they show up in settings and bills.
| Service | What it does |
|---|---|
| Provider APIs | Direct doorways: Anthropic API (Claude), OpenAI API (GPT), Google AI / Vertex (Gemini). Pay per use. |
| OpenRouter | One key, hundreds of models from every provider. The easiest way to try many brains without separate accounts. |
| Amazon Bedrock | Run Claude, Llama, and others billed through your AWS account. See the Cloud guide. |
| Google Vertex AI | Run Gemini, Claude, and others through Google Cloud. |
These two are the most future-proof things on this whole page, because the entire industry is standardizing on them. Learn these and you're building on bedrock, not sand.
A private network that links all your devices — 12 PCs, 3 Macs, phones, NAS — so they can reach each other securely from anywhere, as if they were in one room.
Why it's the backbone: one machine can run Ollama and serve every other device; your phone can drive a PC across the country; nothing is exposed to the public internet. Installed in every device guide here.
A common "plug" (introduced by Anthropic, now adopted across the industry) that lets any AI tool connect to your data and apps — your files, your calendar, a database, a website — in a standard way.
Why it's the future-proof bet: instead of every tool inventing its own connectors, they all speak MCP. Learn it once and it works with Claude, and increasingly with everything else. Deep dive →
The same revolution is happening in media. You don't need these to get started, but here are the names so nothing surprises you.
| For… | Tools in widespread use |
|---|---|
| Images | Midjourney, DALL·E (OpenAI), Stable Diffusion (open, runs locally), Adobe Firefly, Google Imagen |
| Video | Sora (OpenAI), Veo (Google), Runway, Kling |
| Voice & music | ElevenLabs (voices), Suno & Udio (music), Whisper (open transcription) |
New tools land every week. You cannot — and should not — chase all of them. Here's how to stay current without burning out, so the 40-year-olds don't pull ahead.
Commit to the four-layer model, not to any one product. When a shinier coding agent appears, it still slots into Layer 3 — you swap it in an afternoon. Your understanding carries over.
Standards outlive products. MCP and a private network are what everything is converging on. Time spent here never goes stale.
Favor tools that let you switch brains (OpenRouter, bring-your-own-key). Keep accounts with the big three so you can always use the best one for the job.
Keep Ollama on one always-on machine. If a service goes down, prices jump, or you want privacy, you still have a capable model in your own house.
Add an llms.txt file and clean structured data to your sites so AI tools can read and cite them. This is the idea behind the WholeTech network's own Mythos content system.
Don't binge. Install one tool, use it for a week, then add the next. Steady beats frantic — and it's how you actually keep up at any age.
Where the field is heading, so the next wave of names won't catch you flat-footed:
Theory's done. Pick the machine in front of you and follow the six steps.