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How Does OpenClaw Work?

| Weihao Ming

I was reading through the OpenClaw GitHub issues last week and someone asked, basically, “is this just a ChatGPT wrapper?” The answer is no, but I get why people are confused. From the outside, you send a message and get a response. That looks like every other AI chat product. What is different is everything happening between your message and the response.

The actual architecture

OpenClaw has four main pieces, and understanding how they connect explains why it can do things that ChatGPT cannot.

The messaging gateway sits between you and the agent. It receives your Telegram messages (or WhatsApp, Discord, whatever channel you use) and routes them into the system. It also sends responses back. This is the only part you interact with directly.

The AI model is the brain. OpenClaw supports Anthropic’s Claude, OpenAI’s GPT models, Google’s Gemini, Groq, Mistral, xAI, and others. You bring your own API key, which means you pick the model and you control the cost. The model receives your message plus context about what tools are available and what the agent has done recently, then it decides what action to take next.

The computer environment is where it gets interesting. OpenClaw runs inside a real operating system with a browser (Chromium), a terminal (bash), and a full file system. When the AI model decides it needs to visit a website, it actually opens the browser. When it decides to run code, it actually executes it in the terminal. This is not simulated or sandboxed in the way most AI tools operate.

The orchestrator ties everything together. It takes the AI model’s decisions and translates them into actions on the computer, then feeds the results back to the model so it can decide what to do next. A single task might involve dozens of back-and-forth loops: open browser, navigate to URL, read page content, decide what to extract, write a script to process the data, run the script, format the output, send it back to you through Telegram.

Why this matters

Most AI tools are stateless. You ask a question, you get an answer, the conversation resets. But OpenClaw is persistent. It remembers what it has done, maintains files on disk, and can pick up where it left off.

And because it has a real browser, it can do things that API-only tools cannot. Logging into websites, navigating JavaScript-heavy pages, handling CAPTCHAs (sometimes), filling out forms. The browser is not a gimmick. It is what makes web research, data extraction, and automation actually work in messy real-world scenarios where clean APIs do not exist.

The loop in practice

Say you send “research the top 5 CRM tools for small teams and compare their pricing.” So the orchestrator receives this, passes it to the AI model. The model decides to search Google. The browser opens, runs the search, returns the page content. The model reads the results, picks five CRMs, and decides to visit each pricing page. Five browser tabs, five pricing pages read, data extracted. Then the model writes a comparison, formats it, and sends it back through the gateway to your Telegram chat.

That entire loop might take 2-3 minutes. You see a single response. But behind it the agent made maybe 30 decisions, opened a browser a dozen times, and synthesized information from multiple sources, which is fundamentally different from an AI that can only work with whatever text you paste into a chat window.

Self-hosted vs. managed

All of this runs on whatever machine hosts your OpenClaw instance. If you self-host, that is your VPS or Mac Mini. If you use a managed service, the provider handles the compute.

OpenClaw Cloud runs each user’s agent in an isolated container with its own browser, terminal, and file system. Your API key is encrypted with a key only you hold. The architecture is the same either way; the question is just who maintains the hardware. If you want to skip the server management, the waitlist is here.

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